How to Make an eCommerce App
While all eCommerce apps differ by what they sell, they definitely face almost similar challenges when it comes to developing and maintaining them. After analyzing 150+ eCommerce apps, I wrote this guide on how to develop eCommerce applications. It walks you through everything you need to build a eCommerce app.
If you have to take lessons on developing eCommerce apps, you should take a look at these eCommerce apps
While these apps differ by what they sell, they definitely face almost similar challenges when it comes to developing and maintaining them. What starts as a simple app built on top of iOS, Android Java, couple of backend languages and databases, quickly evolves into a complicated technology piece that can have as many as 15+ programming languages supporting it.
If you aren’t careful enough while building eCommerce apps, you can end up making more mistakes than you can count. Consider the example below.
John’s empty cart problem
John adds an item to cart when he was in London. He then travels to New York and logs into his account to complete the purchase.
When he logs in, he sees an empty cart!
What do you think happened here?
(The answer is in the architecture section of this blog post).
Table of Contents
- How not to Develop eCommerce Apps
- A Better Way to Build eCommerce Apps
- Ecommerce App Scalability & Performance Challenges with this Architecture
- Benchmarks for Developing eCommerce Apps
- Using Domain Driven Design for developing eCommerce Apps
- Developing your eCommerce mobile application
How not to Develop eCommerce Apps
There are no highs and lows of the scale at which an eCommerce app should perform. But, right from the start, don’t just end up building something that looks like this.
There are probably hundreds of reasons on why we shouldn’t build an eCommerce app like that. Some of the most commonly known reasons are:
1. Pushing changes gets difficult – No matter how small the change is, it gets difficult to push it across this app. It takes a lot of time for your development to modify this app for even tiniest bit of changes
2. At times it isn’t easy to figure out what’s causing your entire app to perform poorly
3. This app won’t scale beyond a certain number of users
4. Even if your brute force scalability, it will come at 10x the cost of what it should be
5. The development team cannot implement testing easily. Even if you want to follow TDD, ATDD or BDD, you won’t be able to, as the tests your developers would write won’t be able to cover entire code base
6. If one of the functionality fails to work, it could potentially take down the entire app
7. If a third party service breaks, it could potentially break your entire app
8. You will be forced to do everything in one language, one version and pretty much will have to use the same libraries. You won’t be able to leverage a diverse ecosystem
9. Your database will break, users will find that the flash sale discount that he just applied to a TV isn’t valid anymore
10. Search performance is poor as we have to pull information from a single database that will grow extremely large as the ecommerce platform usage increases
11. All you rely on is a fixed number of servers that are either overestimated or underestimated for the target delivery. To handle increased loads, you need to manual add more servers and take them down when the load fluctuates. This is time consuming and extremely capital intensive
I can go on, but you get the idea, right?
 When you compare this architecture with the previous system, the capabilities have been improved by:
1. Servers and load handling capabilities
If any ecommerce app was built on an architecture that we saw previously, we couldn’t increase or decrease servers to match the server load fast enough. But, now we have a load balancer in place. It helps you define:
- how you prefer to handle the incoming loads
- how to add or remove servers when there’s a fluctuating traffic
- how to set thresholds for costs
2. You don’t have to rely on a single language anymore
You can use Node.JS for API design and Python for server side programs – your choice!
If you understand what performance you can get from a particular language or a server framework, you are no longer bound by limitations to only use a few of them.
3. Can use different (types) databases to handle and store different information
Unstructured data like emails, customer data can be stored in a NoSQL database. Whereas any structured information will now be stored into a MySQL database. Using specific databases for specific usage not only improves performance, but also reliability in case of eCommerce apps.
We call this a Polygot database approach, you can read more about it here https://en.wikipedia.org/wiki/Polyglot_persistence
4. Partial separation of concerns
We have third party services operating in a separate server(s) from our core service. As we don’t control 3rd party services, they are a significant risk to our core infrastructure. If not well separated from our app infrastructure, their failures might cause your entire app to break down. Having third party services on a separate servers eliminates this risk.
5. Faster search performance with ElasticSearch
We now are using a Search as a service – ElasticSearch. It speeds up the way your system pulls information from your database using highly optimised indexing. It is worth noting here that search is one of the most frequently used part of an eCommerce app and has to perform really well.
6. Cache service
With a caching service, we look at the most frequently requested information, and create a data store (cache) for it separately. Now, when the same information is being requested by a user, it won’t go to your database, but, would instead be delivered from the cache.
But…
While this might seems like a good architecture for a proof of concept or an MVP, but it won’t work in cases where you are trying to achieve high growth or volume. eCommerce apps are supposed to follow a MVAP (Minimum Viable Awesome Product) philosophy right from the start.
Our diagram is fairly complex, let’s break it down step by step to see where it lacks.
Ecommerce App Scalability & Performance Challenges with this Architecture
1. No Benchmarks of for code scalability and performance
We do see information on how load balancers, server capacity and storage that we have – but we don’t exactly see how internal services are going to work with each other. So, that leads to a situation where we don’t know how to ensure “Adding items to the cart” works all the time, especially during a high velocity sale.
2. Database scalability and performance is not benchmark driven
In this diagram we see that we have Database clusters that are connected with our services. There would be situations in which a particular database is heavily occupied by search queries, but our other services also need it for processing transactions. How are we going to determine which service to prefer? How are we going to decide from millions of possible problems which service to prefer? How are we going to make sure that information delivery is fast enough under all loads?
There are no definition of any of these things.
3. Resource and cost allocation of the system is unclear
Simply put, we don’t know predictably how this system would perform at all. While we do expect it to perform relatively well, but it wouldn’t do so without having you bleed capital on unnecessary resources like costly servers, load balancers, etc without any empathy towards engineering best practices.
Let’s say thousands of dollars spent on advertising and influencer marketing did brought in 100,000+ potential buyers to your eCommerce app. If you don’t have a tech infrastructure that can scale reliably, what’s the point of spending all of this capital?
Benchmarks for Developing eCommerce Apps
From my experience of developing and scaling ecommerce apps, I will share a realistic scenario for a Black Friday sale. If you are doing decent volumes with your eCommerce store, these are the numbers that you are most likely to face:
- 200,000+ orders per day
- 20+ orders per second
- 2000+ product search requests per second
- More than 100M total server requests in a day
Now, this is a scale that most eCommerce apps have to develop keeping in mind.
Your goal is to make sure that your entire system is and what capacity it is capable of serving. And, now that we have these numbers with us, our thinking would shift from scaling entire stack to scaling different services (cart, product search, etc) to match these benchmarks.
We will now break down our app into different services each of which has its own goals to serve. This is called following a microservices approach.
Using Domain Driven Design for Developing eCommerce Apps
Since eCommerce apps are extremely complex and they keep evolving, it makes sense for us to follow a domain driven design here. With a domain driven design, we have specific teams and stakeholders responsible for each services.
Based on domain driven design, let’s evolve our eCommerce app’s server code into microservices.
This is what the evolved architecture would look like
You’ll notice that our code is now divided into a bunch of well defined microservices. The image below shows you the top 10 microsevices that you would absolutely need in order to build a high performing, scalable ecommerce app.
While, I am going to cover developing eCommerce microservices in another blog post, I walk you through why they are extremely important for eCommerce apps.
Lets take a look at the Product search services – It should be able to handle 100M+ requests in a day. If we break down this microservice, you will find this service has:
1. It’s own parameters for load balancers and scaling
2. Well defined server RAM and Memory consumption
3. Has its own dedicated database from where it can pull and show information. No other service can use this database
4. Its own API to communicate and respond to user search requests
5. Has a well defined boundary of what it can or can’t do
Now, let’s say if from a single server based service, you can at max only deliver product search to 1000 concurrent customers, you easily know how many servers it would take to handle 10,000 concurrent product search requests (1000 requests ~ 1 server, 10,000 requests ~ 10 servers). And thus you can reliably scale each of these services.
Another benefit of following a domain driven design is that the app becomes 100% testable. And, if you are planning to automate code deployment to your app, this would be extremely helpful.
All in all, this is what this architectural was actually benchmarked and tested for.
If you interested in reading about eCommerce frontend development of your app, here’s a blog post that I wrote on How to make an eCommerce site using ReactJS?
Scaling services for demand and performance
Now that we know what each service is capable of, individual stakeholders of each services can now scale these services up and down independent of entire ecosystem. This would also tell you what parts of your ecommerce app aren’t good enough for business requirements. You can exclusively focus and improve those parts.
For example, if you see your implementation of ElasticSearch isn’t good enough to deliver product search results in less than 200ms with a load of 1,000 concurrent users, you can look for alternative solutions. You can test alternatives and see how they work and deliver results, without significant investment and without breaking anything else.
What really happened with John’s empty cart?
Coming back to the empty cart problem that I shared at the start. Without well defined microservices, when John added an item to his cart, it was added to a geo-local database.
Our app assumed that John lives in this region and won’t move out. Without domain driven design, stakeholders, product managers and developers had no idea that this could actually happen to them.
We usually build a golden record to handle such use cases. When we do that, we have a well defined and controlled boundary of data and John would be able to see this cart no matter where John lives.
I hope what you have learned so far improves upon your understanding to how to build a cloud backend for eCommerce apps.
If you are interested in evaluating Serverless tech, you should definitely checkout this blog on building eCommerce apps using Serverless
Developing your eCommerce Mobile Application
We will now start working towards building your understanding of ecommerce mobile apps. The way we will move forward now is by looking at the following aspects of ecommerce apps that are extremely critical to get right:
- Dynamic UI
- Building Product screens
- Elements of your app and how you should develop them
- Implementing reusability within your ecommerce app Offline capabilities to improve app user experience
Ecommerce apps with Dynamic UI
A consumer usually may or may not notice this, but as an ecommerce app developer you should know this. eCommerce apps undergo constant UI changes, some are a part of improving user experience, others are there simply because they are for a one time observable event like Black Friday.
Now, simply pushing UI updates to your app each time a new event is near isn’t possible because:
1. App Stores aren’t very reliable in release management, and approval of an updated app version could happen sooner or later.
2. Asking users to update their apps for an event like Black Friday or a UI intended for a Flash sale would only result in user churn
So, how would you solve this?
One way to do that is to plan upfront and compile all app UI in a quarterly app update. You can change this update frequency based on how frequently your users would be willing to update their app. But as a benchmark, don’t go below less than 2 months.
Now, when an app user updates their app, this is all what they are going to see.
While, this is what we are actually shipping
These user interfaces can be activated remotely when you wish to. Here’s what a user that has received a dynamic UI based ecommerce app sees during Black Friday, Halloween, Flash Sales and Christmas.
How do dynamic UIs work?
No matter how complicated this may sound to you, they are not that difficult to implement. While we package all of these UIs in one single app update, all we have to do to activate or deactivate these contextual user interfaces is just pass a message from our servers to the app.
A simple JSON message is sent over the app and activates a UI. The illustration below shows how it works.
Bloated app size
A huge concern here is that with dynamic UIs, we often end up increasing the app size. And increasing app size is one of the many criteria’s that violates the principles of developing an eCommerce app.
This is where we see React Native significantly outperform native. We will talk about that in a bit more detail in the next section.
App updates over the AIR
If we have to push updates to your app, we either have to do it using upfront heavily bloated app size or with lengthy (unpredictable?) app store/Play store review processes.
If you are planning to use React native for ecommerce application development, you can simply integrate your app with a service like CodePush. Using CodePush you can deliver small scale UI updates directly to your app users.
React native again reduces the app size here as we don’t need to package everything in UI upfront, we can simply push the UI using internet.
Further reducing your app size
Ecommerce apps uses a lot of images, and you won’t believe how unoptimized images are still being pushed to eCommerce apps. Optimizing images can reduce the app size by 20% in eCommerce apps.
To reduce image size, consider the following:
- Use compression tools like TinyPNG, compress image without losing any quality
- Ensure that very large images are not added to the app. Have image size validation scripts that triggers an alert if the images getting added are more than 50KB
- Avoid adding image resources, instead use XML drawable and vector drawable wherever possible
- Reuse same image in multiple places, color filter and rotation logic should be used
If you want to develop your app with best practices when it comes to app size. It is recommended that you should write a script, an app size watcher to keep track of app size with each build. There are several plugins available that integrate easily with your CI tools and can keep track of your app size.
How to build your product details screen?
One of the most important parts of an eCommerce app is the product details screen. If you plan to serve a large customer base, be prepared to have a screen that evolves extremely fast. With developers pushing minimum 10 different updates/changes to this screen everyday.
Product details screen is where users are going to decide whether they want to buy the product you are selling or not.
Let’s take the example of Groupon’s product listing screen here. There’s whole lot of design aspect that was applied by Groupon here to scale and deliver a product screen that could supports more than 200M app users.
Here’s how it looks:
Now, this may not be the traditional illustration of design to many. What I instead mean’t here in context to design was the UI engineering design. Let me explain you a bit more:
- Product screens are often not developed by one, but many teams
- They evolve quickly and require high agility
- Each and every aspect of this screen has to be optimized for memory and load times
- Handling complicated edge cases
Clearly, if you don’t deal with this properly – you are in a for a ride of your life!
Groupon takes an entirely different approach to what most other eCommerce providers do while developing this screen. They break this screen into small subunits that work perfectly with each other, but are developed independently and are handled by separate teams.
So, a screen like this can be broken up into small components like these:
I won’t get into deep technical details here. But, this separation is the exact reason why developers working on “highlights” can update “highlights” section and not impact the overall performance of the screen. Whatever they do in “highlights” section is optimized and tested for performance. And the new “highlights” code can be reliably released and integrated with the rest of the screen.
Optimized performance
Following this modular approach to developing eCommerce app product screen not only helps you efficiently showcase long lists of items, but it also helps you efficient show only the part that’s available to the app’s screen
Add or subtract features with ease
As screen elements are independent of each other, adding or removing them takes 10% of the original effort had this practice not been in place. All of the features of the screen can be developed in total isolation.
Better utilize phone’s memory
Apart from optimized consumption, we get a lot more control over what we can do with the phone’s memory here. Groupon effectively pre-load elements of the product screen on phone memory that are yet to be displayed. They do that to drastically improve the load time to 1/10 of what it would otherwise be.
Reliable cache
Groupon takes it a step further while developing their product screen. They have implemented a reliable cache and recycle information that they use effectively re-display list items efficiently.
How to develop Product Image elements?
I talked about the product feature screen in the section above, and I will now pickup an element from it and walk you through real life complexities here. For the sake of simplicity, I’ll go with developing product image elements for an iOS based eCommerce app as I feel it would be a lot more intuitive for everyone reading this.
Challenge: Optimize a high performing image screen and eliminate uncertainty in performance
To build an image viewing element in our iOS app, we usually have three options:
- ScrollView
- CollectionView
- UIPageViewController
If these are new to you, don’t get discouraged by their names. Think of them simply as the way to implement image view elements in your app.
Let’s now evaluate each of them as we move forward and find out which one will give you the best performance.
ScrollView
Your developer places all of these images inside of ScrollView, the functionality would work fine and the performance for most parts would look just about right as well.
But then, you hear an app user complaining about app taking too long time to show images. You went back to your QA and dev team, raised some tickets on your project management system, only to find out automation tests and manual tests returning the results with no errors.
So, what’s really happening here?
When your developer built this product image screen in your app it was implemented using ScrollView. This ScrollView works fine for around 5-10 images with varying degree of results, but for most of the part it won’t show you any flags initially. But when you have a customer that is going to upload 30-40 images of a product, downloading these images in ScrollView gets extremely expensive for your app’s performance.
This is exactly what you weren’t aware of, your developers weren’t aware of, and your QA wasn’t aware of.
Using CollectionView
Now, you can build this using CollectionView as well. But according to me, it’s an overkill. It was built for not just left and right, but up and down movements as well. I will get back to you on why I wouldn’t go with CollectionView at the end of this section.
On using UIPageViewController
I would straightaway recommend you to go for UIPageViewController instead. It is the same exact thing that you see when you scroll left on AppStore. And, It is also the same implementation that you find in iBooks app as well. iBooks can help you scroll through hundreds of pages without any performance issues or apparent lags.
Now, getting back to why I wouldn’t go with CollectionView? First reason, engineering is about avoiding overdesign. Second reason, every unused or partially used library increases the size of your application. App size is a major concern for eCommerce apps as each and every percentage reduction in size leads to high sales and more adoption.
Standardizing icon images across screens on your app
So far we’ve talked about perfect components across a screen. But, let’s now look into a completely different type of optimization that you can do with your eCommerce app – Standardized icon images.
What I prefer here is to define upfront:
1.How these icons would be displayed– This includes defining all business rules for display and settings that should applied to the images
2. Make sure that the element that’s going to use these icons doesn’t have to worry or do anything to load and display these icons
I do that because after years of developing ecommerce apps, I’ve observed:
-
Developers have their own ways of implementing even the simplest possible things. The performance, code quality and consistency of doing something in this case depends upon the skill of developer. This could potentially induce a risk.
- Using modular approach towards developing apps result in higher quality. For example, if an image (icon23.png) is attached to an element, there’s no possible way for anyone to know how deleting this file system image would actually impact the app. Icon23.png could be attached any of the 200 screens that we have in our app.
- You can’t document enough in the software world. And, even if you do, documentation alone isn’t enough to resolve challenges that are widespread in the software development world.
When I look into images that are extremely commonly used across the app, I see that the following are extremely common:
- Loading spinners
- Downloaded product images
- Placeholder images
- Download failure icon
- Feature icons
After building a list of such images, I would define one central place for each of them where I define how they would be loaded and displayed. Even the elements in which they will be loaded won’t have to worry about how this will happen.
If in future, If I decide to increase the size of icons from 12px to 14px in length, I won’t have to worry about applying the same change to 100s of screen. This not only saves a lot of time, but also helps us avoid the chances of any degree of compromise on performance or code quality when a developer updates this. Any changes would eventually be tracked an linked to this central location, and we can control what happens here.
Offline persistence in your app
If you are building an app for shopping for users on the go, giving them the ability to shop from whenever they want – you better be prepared for poor and intermittent network connections. Most likely, your app users won’t know if they have a poor network coverage, or whether your app isn’t working. They are most likely to blame your app!
Your app’s user would find it irrational to lose information that was just there a few seconds ago. Even if it vanished as he/she moved from one screen to another or minimized his app. Now, this is actually a poor implementation even from an engineering standpoint as well. As engineers, we don’t control the network, but we do definitely control some of the information that the app fetches from the server.** If done properly, the app can actually retain some information and function well even when there’s no network connection.**
I’ve written an extremely detailed blog post around this a few months ago, if you want to read it in detail, here’s my take on building offline mobile apps.
Increasing reusability for eCommerce apps
For organizations that have multiple eCommerce apps, it often gets too expensive to develop these apps from scratch and maintain them. If that’s your use case, I would focus on identifying the foundational parts that are often common across these apps and just induce redundancy.
Once identified, I prefer to package them in form of an SDK and consume it across multiple apps.
Take the example of offline catalog storage services in your apps. You can easily see that this is something most of your apps would have as a feature. Now, while building this offline catalog service for the first time, you can carefully package it in form of an SDK.
When you build another app that needs a catalogue functionality, all your developer would need to do is to call this code and that’s it, it will work out of the box.
Adidas and other pioneers of mobile technologies in eCommerce leverage this extensively, they have SDKs that are being consumed in multiple other apps.
Concluding
That’s pretty much it for the blog post. I hope that I was able to walk you through the complexities involved in ecommerce application development, and when you develop ecommerce apps I hope some of these strategies would solve real growth problems for you.


Major lung resection | | 1 | | Knowledge | | h | | \N | | \N |
Major lung resection | | 2 | | Preparation | | h | | Positioning and choice of incision(s) | | \N |
Major lung resection | | 3 | | Dissect levels 4, 5/6, 7, 8, 9 | | m | | Carina, esophagus, [SVC, trachea, azygos vein] or [aorta/PA] identified | | N2 disease present |
Major lung resection | | 4 | | Dissect, divide pulmonary vein | | m | | Pulmonary vein to remain in place identified | | Common pulmonary vein; how to control venous bleeding |
Major lung resection | | 5 | | Dissect, divide pulmonary artery branches | | h | | Differentiate between branches to affected lobe vs other lobes | | How to control arterial bleeding |
Major lung resection | | 6 | | Complete fissure(s) | | m | | Avoid impinging on other lobes | | Fissure involved by cancer |
Major lung resection | | 7 | | Conclusion | | m | | \N | | \N |
Thymectomy | | 1 | | Knowledge | | h | | \N | | \N |
Thymectomy | | 2 | | Preparation | | h | | Positioning and choice of incision(s) | | \N |
Thymectomy | | 3 | | Opening pleura adjacent to ipsilateral phrenic nerve | | l | | Identify phrenic nerve and internal thoracic vein | | \N |
Thymectomy | | 4 | | Dissection of pericardium | | m | | Identify the plane between the thymus and pericardium | | \N |
Thymectomy | | 5 | | Dissection of upper poles | | m | | Identify upper poles | | \N |
Thymectomy | | 6 | | Dissection and division of venous branches | | h | | Identify innominate vein | | \N |
Thymectomy | | 7 | | Completion of dissection with preservation of contralateral phrenic nerve | | h | | Identify contralateral phrenic nerve | | \N |
Thymectomy | | 8 | | Conclusion | | m | | \N | | \N |
Radical pleurectomy/decortication | | 1 | | Knowledge | | h | | \N | | \N |
Radical pleurectomy/decortication | | 2 | | Preparation | | h | | Positioning and choice of incision(s) | | \N |
Radical pleurectomy/decortication | | 3 | | Separation of lung from pleura | | m | | Identify pleural plane | | \N |
Radical pleurectomy/decortication | | 4 | | LN dissection | | m | | \N | | \N |
Radical pleurectomy/decortication | | 5 | | Dissection of upper poles | | m | | Identify of upper poles | | \N |
Radical pleurectomy/decortication | | 6 | | Excision and reconstruction of diaphragm | | h | | Identify the plane between the diaphragm and peritoneum | | \N |
Radical pleurectomy/decortication | | 7 | | Excision and reconstruction of pericardium | | h | | Identify the plane between the pericardium and epicardium | | \N |
Radical pleurectomy/decortication | | 8 | | Conclusion | | m | | \N | | \N |
Esophagectomy | | 1 | | Knowledge | | h | | \N | | \N |
Esophagectomy | | 2 | | Preparation | | h | | Positioning and choice of incision(s) | | \N |
Esophagectomy | | 3 | | Mobilization of stomach | | m | | Identify gastroepiploic arcade | | \N |
Esophagectomy | | 4 | | LN dissection | | h | | Identify left gastric vessels | | \N |
Esophagectomy | | 5 | | Creation of a gastric tube | | m | | Identify angulus | | \N |
Esophagectomy | | 6 | | Gastric emptying procedure | | m | | Identification of pylorus | | \N |
Esophagectomy | | 7 | | J tube insertion | | m | | Identify insertion site 30-40 cm from LOT | | \N |
Esophagectomy | | 8 | | Creation of a gastric tube | | m | | Identify angulus | | \N |
Esophagectomy | | 9 | | Division of pleura | | l | | \N | | \N |
Esophagectomy | | 10 | | Mobilization of infra-azygos esophagus | | m | | Identify aorta, azygos, thoracic duct, contralateral pleura, pulmonary veins, airways | | \N |
Esophagectomy | | 11 | | Division of azygos and mobilization of upper thoracic esophagus | | m | | Identify recurrent laryngeal nerves | | \N |
Esophagectomy | | 12 | | Nodal dissection | | m | | \N | | \N |
Esophagectomy | | 13 | | Anastomosis | | h | | Identify correct locations on gastric tube and esophagus | | \N |
Esophagectomy | | 14 | | Conclusion | | m | | \N | | \N |
Diaphragm (hiatal) hernia repair | | 1 | | Knowledge | | h | | \N | | \N |
Diaphragm (hiatal) hernia repair | | 2 | | Preparation | | h | | Positioning and choice of incision(s) | | \N |
Diaphragm (hiatal) hernia repair | | 3 | | Dissection and excision of sac | | h | | Identify peritoneal plane and hiatal margins | | \N |
Diaphragm (hiatal) hernia repair | | 4 | | Esophageal mobilization | | m | | Identify aorta and pleura | | \N |
Diaphragm (hiatal) hernia repair | | 5 | | Performance of a lengthening procedure | | h | | Diagnosis of esophageal shortening | | \N |
Diaphragm (hiatal) hernia repair | | 6 | | Hiatal closure | | m | | \N | | \N |
Diaphragm (hiatal) hernia repair | | 7 | | Gastric wrap | | m | | Determination of the type of wrap to perform | | \N |
Diaphragm (hiatal) hernia repair | | 8 | | Conclusion | | m | | \N | | \N |
Lung transplant implant | | 1 | | Knowledge | | h | | \N | | \N |
Lung transplant implant | | 2 | | Preparation | | h | | Positioning and choice of incision(s) | | \N |
Lung transplant implant | | 3 | | \N | | \N | | \N | | \N |
Lung transplant implant | | 4 | | \N | | \N | | \N | | \N |
Lung transplant implant | | 5 | | \N | | \N | | \N | | \N |
Lung transplant implant | | 6 | | Conclusion | | m | | \N | | \N |
Other thoracic | | 1 | | Preparation | | \N | | \N | | \N |
Other thoracic | | 2 | | Performance | | \N | | \N | | \N |
Other thoracic | | 3 | | Conclusion | | \N | | \N | | \N |
Initiating CPB | | 1 | | Knowledge | | h | | \N | | \N |
Initiating CPB | | 2 | | Preparation | | h | | Positioning and choice of incision(s) | | \N |
Initiating CPB | | 3 | | Aortic cannulation | | m | | Selection of site | | \N |
Initiating CPB | | 4 | | Venous cannulation | | m | | Selection of site(s) and cannula(e) | | \N |
Initiating CPB | | 5 | | Institution of bypass | | m | | \N | | \N |
Initiating CPB | | 6 | | Cross clamp and cardioplegia | | h | | Selection of site and plan for plegia | | \N |
Initiating CPB | | 7 | | Conclusion | | m | | \N | | \N |
Separation from CPB | | 1 | | Knowledge | | h | | \N | | \N |
Separation from CPB | | 2 | | Preparation | | h | | Knowledge of appropriate timing | | \N |
Separation from CPB | | 3 | | Rewarming | | m | | Identify appropriate timing | | \N |
Separation from CPB | | 4 | | De-airing and volume administration | | m | | \N | | \N |
Separation from CPB | | 5 | | Rhythm assessment/need for pacing | | m | | \N | | \N |
Separation from CPB | | 6 | | Cannulae removal and heparin reversal | | m | | \N | | \N |
Separation from CPB | | 7 | | Conclusion | | m | | \N | | \N |
CABG | | 1 | | Knowledge | | h | | \N | | \N |
CABG | | 2 | | Preparation | | h | | Positioning and choice of incision(s) and conduit(s) | | \N |
CABG | | 3 | | Mammary takedown | | m | | \N | | \N |
CABG | | 4 | | Target identification and exposure | | h | | Establish angiographic and anatomic correlates | | \N |
CABG | | 5 | | Distal anastomosis | | h | | \N | | \N |
CABG | | 6 | | Proximal anastomosis | | m | | \N | | \N |
CABG | | 7 | | Conclusion | | m | | \N | | \N |
AVR | | 1 | | Knowledge | | h | | \N | | \N |
AVR | | 2 | | Preparation | | h | | Positioning and choice of incision(s) | | \N |
AVR | | 3 | | Aortotomy | | m | | Identify appropriate location | | \N |
AVR | | 4 | | Leaflet removal/decalcification | | h | | Identify mitral apparatus at risk | | \N |
AVR | | 5 | | Suture placement | | m | | Identify conduction system at risk | | \N |
AVR | | 6 | | Valve sizing and seating | | h | | \N | | \N |
AVR | | 7 | | Aortic closure | | m | | \N | | \N |
AVR | | 8 | | Conclusion | | m | | \N | | \N |
MV Repair | | 1 | | Knowledge | | h | | \N | | \N |
MV Repair | | 2 | | Preparation | | h | | Positioning and choice of incision(s) | | \N |
MV Repair | | 3 | | Atriotomy | | m | | Identify appropriate location | | \N |
MV Repair | | 4 | | Leaflet remodeling | | h | | Identify components of mitral apparatus at risk | | \N |
MV Repair | | 5 | | Annuloplasty | | m | | Identify conduction system at risk | | \N |
MV Repair | | 6 | | Atriotomy closure | | m | | \N | | \N |
MV Repair | | 7 | | Conclusion | | m | | \N | | \N |
LVAD | | 1 | | Knowledge | | h | | \N | | \N |
LVAD | | 2 | | Preparation | | h | | Positioning and choice of incision(s) | | \N |
LVAD | | 3 | | Pocket creation | | l | | Identify location and orientation | | \N |
LVAD | | 4 | | Ventriculotomy | | m | | Identify position relative to septum and orientation | | \N |
LVAD | | 5 | | Placement of inflow cannula | | \N | | \N | | \N |
LVAD | | 6 | | Placement of outflow graft | | h | | \N | | \N |
LVAD | | 7 | | Assess management of RV | | h | | \N | | \N |
LVAD | | 8 | | VAD settings | | h | | Determine relationship to septal position and aortic valve opening | | \N |
LVAD | | 9 | | Conclusion | | m | | \N | | \N |
Heart transplant implant | | 1 | | Knowledge | | h | | \N | | \N |
Heart transplant implant | | 2 | | Preparation | | h | | Positioning and choice of incision(s) | | \N |
Heart transplant implant | | 3 | | \N | | \N | | \N | | \N |
Heart transplant implant | | 4 | | \N | | \N | | \N | | \N |
Heart transplant implant | | 5 | | \N | | \N | | \N | | \N |
Heart transplant implant | | 6 | | \N | | \N | | \N | | \N |
Heart transplant implant | | 7 | | \N | | \N | | \N | | \N |
Heart transplant implant | | 8 | | \N | | \N | | \N | | \N |
Heart transplant implant | | 9 | | Conclusion | | m | | \N | | \N |
Other adult cardiac | | 1 | | Preparation | | \N | | \N | | \N |
Other adult cardiac | | 2 | | Performance | | \N | | \N | | \N |
Other adult cardiac | | 3 | | Conclusion | | \N | | \N | | \N |
ASD closure | | 1 | | Knowledge | | h | | \N | | \N |
ASD closure | | 2 | | Preparation | | h | | Positioning and choice of incision(s) | | \N |
ASD closure | | 3 | | \N | | \N | | \N | | \N |
ASD closure | | 4 | | \N | | \N | | \N | | \N |
ASD closure | | 5 | | \N | | \N | | \N | | \N |
ASD closure | | 6 | | \N | | \N | | \N | | \N |
ASD closure | | 7 | | \N | | \N | | \N | | \N |
ASD closure | | 8 | | \N | | \N | | \N | | \N |
ASD closure | | 9 | | Conclusion | | m | | \N | | \N |
VSD closure | | 1 | | Knowledge | | h | | \N | | \N |
VSD closure | | 2 | | Preparation | | h | | Positioning and choice of incision(s) | | \N |
VSD closure | | 3 | | \N | | \N | | \N | | \N |
VSD closure | | 4 | | \N | | \N | | \N | | \N |
VSD closure | | 5 | | \N | | \N | | \N | | \N |
VSD closure | | 6 | | \N | | \N | | \N | | \N |
VSD closure | | 7 | | \N | | \N | | \N | | \N |
VSD closure | | 8 | | \N | | \N | | \N | | \N |
VSD closure | | 9 | | Conclusion | | m | | \N | | \N |
Repair coarctation | | 1 | | Knowledge | | h | | \N | | \N |
Repair coarctation | | 2 | | Preparation | | h | | Positioning and choice of incision(s) | | \N |
Repair coarctation | | 3 | | \N | | \N | | \N | | \N |
Repair coarctation | | 4 | | \N | | \N | | \N | | \N |
Repair coarctation | | 5 | | \N | | \N | | \N | | \N |
Repair coarctation | | 6 | | \N | | \N | | \N | | \N |
Repair coarctation | | 7 | | \N | | \N | | \N | | \N |
Repair coarctation | | 8 | | \N | | \N | | \N | | \N |
Repair coarctation | | 9 | | Conclusion | | m | | \N | | \N |
Ligate PDA | | 1 | | Knowledge | | h | | \N | | \N |
Ligate PDA | | 2 | | Preparation | | h | | Positioning and choice of incision(s) | | \N |
Ligate PDA | | 3 | | \N | | \N | | \N | | \N |
Ligate PDA | | 4 | | \N | | \N | | \N | | \N |
Ligate PDA | | 5 | | \N | | \N | | \N | | \N |
Ligate PDA | | 6 | | \N | | \N | | \N | | \N |
Ligate PDA | | 7 | | \N | | \N | | \N | | \N |
Ligate PDA | | 8 | | \N | | \N | | \N | | \N |
Ligate PDA | | 9 | | Conclusion | | m | | \N | | \N |
Palliative shunt | | 1 | | Knowledge | | h | | \N | | \N |
Palliative shunt | | 2 | | Preparation | | h | | Positioning and choice of incision(s) | | \N |
Palliative shunt | | 3 | | \N | | \N | | \N | | \N |
Palliative shunt | | 4 | | \N | | \N | | \N | | \N |
Palliative shunt | | 5 | | \N | | \N | | \N | | \N |
Palliative shunt | | 6 | | \N | | \N | | \N | | \N |
Palliative shunt | | 7 | | \N | | \N | | \N | | \N |
Palliative shunt | | 8 | | \N | | \N | | \N | | \N |
Palliative shunt | | 9 | | Conclusion | | m | | \N | | \N |
Other congenital heart surgery | | 1 | | Preparation | | \N | | \N | | \N |
Other congenital heart surgery | | 2 | | Performance | | \N | | \N | | \N |
Other congenital heart surgery | | 3 | | Conclusion | | \N | | \N | | \N |


Graph showing the diseases related with {{disease.label}}. Click on any disease to get more information about it and its associated targets


<% if (status == 'ok') { %>
<%- login %> unsubscribed from <%- field %>.
<% if (current_user.registered) { %>
Go to if you want to tune your notifications further.
Or go to your profile.
<% } %>
<% } else { %>
Attempt to unsubscribe <%- login %> from <%- field %> has failed. Secret key is probably invalid.
<% if (current_user.registered) { %>
Go to if you want to tune your notifications.
<% } %>
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Sign in to tune your notification settings.
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There's this one museum which really screwed us over.
Of course it's not the museums fault or anything but, I still blame it for all our problems in Rome.
We had a 3 day pass of Rome which meant unlimited bus fare, free admission to two museums or sites, and reduced admission for anywhere else.
On our first day we visited the collisseum and it was pretty cool.
Then, we went to the Borgheiss Museum which is like the top dog art museum in Rome.
When we arrived, around 3 PM, the lady in the ticket booth told us we could only reserve tickets over the phone.
So we left and sat at a random desolate bus station for half an hour.
There was a stable of horses right next to it, so I just passed time neighing to the horses and watching their reactions.
But the bus never came so we just started walking back and did some other things.
On day two we went back to the Borgheiss Museum super early cuz we didn't even know the phone number to reserve tickets and maybe possibly reserve the tickets there.
Unfortunately their tickets were all sold out by 9 AM for that day so we were like, "wtf is with this museum".
We talked to a different ticket attendent and this time we actually bought tickets there for 3 PM entrance to the museum for tomorrow.
The phone wasn't even needed?!?!? So that meant that the first day attendent lied to our faces
Ok so then came the third day.
We got on the bus to the Borgheiss Museum but we didnt get off at the Borgheiss Museum.

Nobody even noticed till my dad tried to check the tickets because the busses there are jampacked with people.
Apaarently, this is a frequent thing that happens in Rome?!?! Sigh..
And to make matters worse this also cancelled all our future plans.
My parents had to freeze all their credit cards and my dad also lost his driver liscense and his EU drivers liscense.
We were planning to drive to Pompeii on the last day but couldn't get the rental car because of that.
Thankfully, I brought my credit card, which is also a travel rewards card so that means no foreign transaction fees, and we used that for the last couple of days.


Lootbox Sm
LootboxSimulator Github Link
Introduction This project is an Angular Single-Page Application based on the concept of “lootboxes”, random virtual rewards commonly found in video games. The goal of this project is to recreate the anticipation and uniqueness of opening such a reward with interesting random items.
A working demo of this project can be found here.
Technologies Leveraged Angular v9.x Material UI Libraries / npm Packages Faker.js Lorem Picsum Angular Flex-Layout ngx-clipboard Core Functionality In a typical use case, the user will navigate to the root of the application (ex: https://devonjsmith.


Mahatma Gandhi
You must be the change you wish to see in the world
Here's a time line of Gandhi's life:
- 1869 - Born in Porbandar, India
- 1888 - Leaves for England to study law
- 1947 - Official Indian independence
- 1948 - He is assassinated
You must be the change you wish to see in the world


Provide feedback, Partner to create options and practices. I found that establishing trust, listen (by “looping” and “dipping”) and asking probing and open-ended questions the most useful to get insight and trust of someone.
I found that when I was empathic listening that my friend told me more about her issues than she had ever before. I'm totally integrating empathic listening into my everyday life.
I found it to be very insightful when I came to dealing with my younger brother, the meditation allowed me to not only feel happy within myself, but my brother even said I seemed delighted and intuned he was nicer during the day, well until the internet stopped working and he couldn't game any longer.


BMI
{{myBmi}}
BMR
{{myBmr}}
Status
{{myStatus}}
Your daily calories
{{myDailyCalories}} Kcal
Max Calories you should have
{{myCaloriesChange}} kcal
{{myBreakfast}}
{{myLunch}}
{{myDiner}}
you cannot lose more than 0.91 in a week.


Count Down Begins - {{countDown}}
Participants - {{randomParticipant}}
Start Game
AngularJS seed app: v


|
PHP Stream
|
Public Member Functions | |
| __construct (private iterable $iterable) | |
| filter (callable|UnaryFunction|FilterOperator $filter) | |
| map (callable|UnaryFunction|string|MapOperator $mapper) | |
| peek (callable|UnaryFunction|PeekOperator $peekingFunction) | |
| limit (int $limit) | |
| skip (int $limit) | |
| distinct () | |
| index (callable|string $indexer, $allowDuplicate=false) | |
| sort (callable|Comparator|string $cmp=null) | |
| execute (StreamOperator $operator) | |
| findAny () | |
| findFirst () | |
| findLast () | |
| count () | |
| toArray () | |
| toMap () | |
| toIterable () | |
| min (callable|Comparator $cmp=null) | |
| max (callable|Comparator $cmp=null) | |
| reduce (callable|BinaryFunction $reducer, $initialValue=null) | |
| collect (StreamCollector $collector) | |
Additional Inherited Members | |
| Static Public Member Functions inherited from phpstream\Stream | |
| static | of (iterable $iterable=[], bool $inMemory=true) |
| static | concat (Stream|array... $streams) |
| Protected Member Functions inherited from phpstream\Stream | |
| _getComparator (callable|Comparator $cmp=null) | |
Stream processor implementation using Generators (yield
). It offers less performance but requires less memory to perform operations.
| phpstream\impl\GeneratorStream::__construct | ( | private iterable | $iterable | ) |
GeneratorStream constructor.
| iterable | $iterable | Iterable value to be processed. |
| phpstream\impl\GeneratorStream::collect | ( | StreamCollector | $collector | ) |
Collect data according given Stream collector.
| StreamCollector | $collector | Collector instance |
Reimplemented from phpstream\Stream.
| phpstream\impl\GeneratorStream::count | ( | ) |
Returnd the number of elements in the resulting array.
Reimplemented from phpstream\Stream.
| phpstream\impl\GeneratorStream::distinct | ( | ) |
Returns a new Stream that contains only distinct elements.
Reimplemented from phpstream\Stream.
| phpstream\impl\GeneratorStream::execute | ( | StreamOperator | $operator | ) |
Skip the first result.
| StreamOperator | $operator | Operator to execute. |
Reimplemented from phpstream\Stream.
| phpstream\impl\GeneratorStream::filter | ( | callable|UnaryFunction|FilterOperator | $filter | ) |
Filter enclosing array using a callback function. Callback function must take 1 parameters $value
corresponding to array value in the enclosing array. It must return true
if the element is valid, false
otherwise.
| callable | UnaryFunction | FilterOperator | $filter | Filtering callback function. |
Reimplemented from phpstream\Stream.
| phpstream\impl\GeneratorStream::findAny | ( | ) |
Returns an Optional instance containing any element of the resulting array if exists.
Reimplemented from phpstream\Stream.
| phpstream\impl\GeneratorStream::findFirst | ( | ) |
Returns an Optional instance containing the first element of the resulting array if exists.
Reimplemented from phpstream\Stream.
| phpstream\impl\GeneratorStream::findLast | ( | ) |
Returns an Optional instance containing the first element of the resulting array if exists.
Reimplemented from phpstream\Stream.
| phpstream\impl\GeneratorStream::index | ( | callable|string | $indexer, |
$allowDuplicate = false |
|||
| ) |
Returns an optional containing the max value of the stream if exists.
| callable | string | $indexer | Indexer function or field. |
| bool | $allowDuplicate | If duplicates are allowed, no error if given when 2 elements got same key. |
Reimplemented from phpstream\Stream.
| phpstream\impl\GeneratorStream::limit | ( | int | $limit | ) |
Limits the number of result.
| int | $limit | Number of results to keep. |
Reimplemented from phpstream\Stream.
| phpstream\impl\GeneratorStream::map | ( | callable|UnaryFunction|string|MapOperator | $mapper | ) |
Maps each element of the enclosing array using function.
| callable | UnaryFunction | string | MapOperator | $mapper | Mapping function to call |
Reimplemented from phpstream\Stream.
| phpstream\impl\GeneratorStream::max | ( | callable|Comparator | $cmp = null | ) |
Returns an optional containing the max value of the stream if exists.
| callable | Comparator | null | $cmp | Comparator object / callback. |
Reimplemented from phpstream\Stream.
| phpstream\impl\GeneratorStream::min | ( | callable|Comparator | $cmp = null | ) |
Returns an optional containing the min value of the stream if exists.
| callable | Comparator | null | $cmp | Comparator object / callback. |
Reimplemented from phpstream\Stream.
| phpstream\impl\GeneratorStream::peek | ( | callable|UnaryFunction|PeekOperator | $peekingFunction | ) |
Maps each element of the enclosing array using function.
| callable | UnaryFunction | PeekOperator | $peekingFunction | Mapping function to call |
Reimplemented from phpstream\Stream.
| phpstream\impl\GeneratorStream::reduce | ( | callable|BinaryFunction | $reducer, |
$initialValue = null |
|||
| ) |
Reduces the value of the array using the given function.
| callable | BinaryFunction | $reducer | Reducing callback. |
| mixed | $initialValue | Initial value - default if stream is empty. |
Reimplemented from phpstream\Stream.
| phpstream\impl\GeneratorStream::skip | ( | int | $limit | ) |
Skip the first result.
| int | $limit | Number of elements to skip. |
Reimplemented from phpstream\Stream.
| phpstream\impl\GeneratorStream::sort | ( | callable|Comparator|string | $cmp = null | ) |
Sort stream.
| callable | Comparator | string | null | $cmp | Comparator object / callback or field/method. |
Reimplemented from phpstream\Stream.
| phpstream\impl\GeneratorStream::toArray | ( | ) |
Executes all operations and return an array of results.
Reimplemented from phpstream\Stream.
| phpstream\impl\GeneratorStream::toIterable | ( | ) |
Executes all operations and return a map of results (conserving key / value association of the initial array).
Reimplemented from phpstream\Stream.
| phpstream\impl\GeneratorStream::toMap | ( | ) |
Executes all operations and return a map of results (conserving key / value association of the initial array).
Reimplemented from phpstream\Stream.


Gift Factory
Home
Products
Contact Us
About Us
Cart
Our Packages
Flowers
Chocolate
Body Care
10.00
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Flowers Jd
10.00
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Chocolate
Body Care
10.00
10.00
10.00


Input Company for search
{{ phone.title }} - {{ phone.company }}
Click Mode Company Price for filtering


Introduction
DAG Generator is a tool which gives a Directed Acyclic Graph for a given Infix Expression.
This is a mini project as a part of Compiler Design course.
What's the flow?
- Infix Expression is given.
- Postfix Expression is found from Infix Expression.
- Three Address format is found out from the Postfix Expression.
- The Three Address Format is represented as a Directed Acyclic Graph.
Example
Let the Three Address format be:
- t0 = a + b
- t1 = t0 + c
- d = t0 + t1
Please refer here


 -
Closer (Remix)
[by:文斯莫克-山治] [ti:] [ar:] [al:] [by:九九Lrc歌词网～www.99Lrc.net] Hey, I was doing just fine before I met you I drink too much ... -
Closer (R3hab Remix)
[by:Rumor-taker] Hey, I was doing just fine before I met you I drink too much and that's an issue But I'm okay Hey，you t... -
Now Or Never (R3hab Remix)
[by:NickyRomero] I don't wanna fight right now Know you always right, Now I know I need you 'round with me But nobody wa... -
Without Me (ILLENIUM Remix)
[by:hondoes] Found you when your heart was broke I filled your cup until it overflowed Took it so far to keep you close ... -
Eastside
Uh Yeah, yeah When I was young, I fell in love We used to hold hands, man, that was enough (yeah) Then we grew up, start...  -
Die For Me
[by:Trap_Girl] 作曲 : Louis Bell/Andrew Watt/Happy Perez/Austin Post/Nayvadius Wilburn/Ashley Frangipane/Billy Walsh 作词 ...  Been in pain like me? Bought a hund... -
Closer
Hey, I was doing just fine before I met you I drink too much and that's an issue But I'm okay Hey, you tell your friends... -
Sorry
[by:咆哮的小清新___] I've missed your calls for months it seems Don't realize how mean I can be 'Cause I can sometimes treat t... -
Boy With Luv feat. Halsey
作曲 : Pdogg/RM/Melanie Joy Fontana/Michel "Lindgren" Schulz/“hitman”bang/SUGA/Emily Weisband/j-hope/Halsey 作词 : Pdogg/R... -
Close To Home (The Chainsmokers x Fifth Harmony x Young Bombs)
[by:花开淡墨似从前] [ti:Close To Home (The Chainsmokers x Fifth Harmony x Young Bombs)] [ar:Trademark/The Chainsmokers/Fifth Ha... -
11 Minutes
[by:Trap_Girl] I'm 11 minutes away and I have missed you all day I'm 11 minutes away, so why aren't you here? I think I ... -
Take It Back (Flume x Audien)
[by:伊利丹-_-怒风] What I would do to take away This fear of being loved Allegiance to the pain Now I messed up And I'm ... -
Strange Love
[by:depprosper] Everybody wants to know If we ****** on the bathroom sink How your hands felt in my hair If we were high... -
Walls Could Talk
[by:咆哮的小清新___] Been about three days and I'm comin' back I'm about four minutes from a heart attack And I think you make... -
100 Letters
[by:咆哮的小清新___] How can Midas put his hands on me again? He said "one day I'd realize why I don't have any friends" I fin... -
Young God
[by:CrazyMofo] [ti:] [ar:] [al:] [by:九九Lrc歌词网～www.99Lrc.net] He says "Oh, baby, girl, you know we're gonna be legends I'... -
Is There Somewhere
[by:CrazyMofo] [ti:] [ar:] [al:] [by:九九Lrc歌词网～www.99Lrc.net] You were dancing in your tube socks in our hotel room, flas... -
Lie
[by:咆哮的小清新___] Breakfast is cold, as cold as our bed I'm watching you choke down the words that you said I watch you dev... -
Drive
[by:CrazyMofo] [ti:] [ar:] [al:] [by:九九Lrc歌词网～www.99Lrc.net] My hands wrapped around a stick shift Swerving on the 405, ... -
Don’t Play
[by:咆哮的小清新___] Alone out in Saint-Tropez Lookin' as fine as a damn Monet Tryna' hydrate on Perrier Everybody thirsty, dr... -
I Walk the Line
[by:工作婊] I keep a close watch on this heart of mine I keep my eyes wide open all the time I keep the ends out for the ti...  -
Empty Gold
[by:CrazyMofo] [ti:] [ar:] [al:] [by:九九Lrc歌词网～www.99Lrc.net] I,I must confess How hard I tried to breathe Through the tr...  -
Colors, Pt. 2
[by:工作婊] Everything is Everything is Everything is Dripping like a saturated sunrise Everything is blue I hope you make ... -
Now Or Never
I don't wanna fight right now Know you always right, now Now I know I need you around with me But nobody will be aro... -
Strangers
作曲 : Ashley Frangipane/Greg Kurstin 作词 : Ashley Frangipane/Greg Kurstin She doesn't kiss me on the mouth anymore 'Cau... -
Clsr (Aash Mehta Flip)
[by:小陀螺Tony] Hey, I was doing just fine before I met you I drink too much and that's an issue but I’m okay Hey, you tell... -
Him & I
[by:七香] [ti:] [ar:] [al:] [by:九九Lrc歌词网～www.99Lrc.net] Halsey： Cross my heart, hope to die To my lover, I’d never lie He ... -
Castle
[by:踩着高跷去北极] Sick of all these people talking Sick of all this noise Tired of all these cameras flashing Sick of being p... -
clementine
[by:Trap_Girl] 作曲 : Ashley Frangipane/Johnathan Carter Cunningham 作词 : Ashley Frangipane/Johnathan Carter Cunningham I... -
Without Me
Found you when your heart was broke I filled your cup until it overflowed Took it so far to keep you close (keep you clo... -
Nightmare
[by:Trap_Girl] 作曲 : Ashley Frangipane/Benjamin Levin/Magnus August Høiberg/Nathan Perez 作词 : Ashley Frangipane/Benjami... -
Ghost (Lost Kings Remix)
[by:影似疯] I'm searching for something that I can't reach. I don't like them innocent I don't want no face fresh Want them... -
Hold Me Down
[by:工作婊] My demons are begging me to open up my mouth I need them, mechanically make the words come out They fight me, v... -
Graveyard
[by:Trap_Girl] 作曲 : Louis Bell/Amy Allen/Jonathan Bellion/Ashley Frangipane/Jordan K. Johnson/Stefan Johnson/Mark "Oji"...  -
Eyes Closed
[by:冰糖炖雪梨Shirley] I, I know where to lay I know what to say It's all the same And I, I know how to play I know this game... -
Haunting
[by:工作婊] Haunting Haunting me Haunting Haunting me I was as pure as a river But now I think I'm possessed You put a feve...  -
Bad At Love
Got a boy back home in Michigan And it tastes like Jack when I'm kissing him So I told him that I never really liked his... -
Control
They send me away to find them a fortune A chest filled with diamonds and gold The house was awake, the shadows and mons... -
Roman Holiday
Do you remember the taste of my lips that night I stole a bit of my mother's perfume? Cause I remember when my father pu... -
Alone
[by:Trap_Girl] If I Said he tried to phone me, but I never have time He said that I never listen, but I don't even try I...  -
Heaven In Hiding
[by:咆哮的小清新___] Sittin' on the counter in your kitchen Can you hear my heartbeat ******* kickin'?  -
Coming Down
I found god I found him in a lover When his hair falls in his face And his hands so cold they shake I found the devil I...  -
Angel On Fire
[by:咆哮的小清新___] I woke up to another mess in the living room Broken bottles all around my feet They came again in the nig... -
Trouble (Stripped)
[by:For__] [by:E-Lyric] [offset:-100] Would you bleed for me? Lick it off my lips like you needed me? Would you sit me o... -
New Americana
[by:叶七夕] [ti:new americana] [ar:Halsey] [al:new americana] [by:叶七夕] Cigarettes and tiny liquor bottles, just what you’d ...


Sikhs celebrate 550th birth anniversary of Baba Guru Nanak
by https://www.facebook.com/dunyanewsNANKANA SAHIB (AFP/Dunya News) – Millions of Sikhs on Tuesday are observing the 550th birth anniversary of the founder of their religion, Baba Guru Nanak. It is being observed as one of the biggest birthday celebrations in the world.
The main ceremony to pay respect to Baba Guru Nanak is being held at Gurdwara Janam Asthan in Nankana Sahib, Punjab province of Pakistan.
The annual celebration has been given extra significance this year with the opening of the Kartarpur Corridor, a secure, visa-free passage between arch-rivals India and Pakistan that gives Indian Sikhs access to the place where the guru died in 1539, now one of the religion’s holiest sites.
Reportedly, several federal ministers, including interior minister Ejaz Shah, have joined Sikh devotees and followers from all over the world in the ceremony.
Meanwhile, foolproof security arrangements have been made to avoid any untoward incident.
As part of the celebration, Prime Minister Imran Khan formally inaugurated the Kartarpur Corridor on Nov. 9, thereby allowing Indian pilgrims to travel across the border without visas between the Indian town of Dera Baba Nanak and the Sri Kartarpur Sahib Gurdwara, Guru Nanak’s final resting place, about 6km (4 miles) away in Pakistan.
They have come from across Pakistan, the Middle East, Europe, the United States and Canada, but the majority has arrived from neighbouring India.
What is Sikhism?
Sikhism is a monotheistic religion born in the 15th-century in Punjab –- meaning the land of five rivers, a region spanning parts of what is now India and Pakistan.
Five and a half centuries later, Sikhs number up to 30 million worldwide, with a rich diaspora in places such as Canada, the US and Europe -- although the vast majority remain in India.
Once rulers of the Punjab, they were considered a martial race by the British colonisers.
Men, in particular, are instantly recognisable by their colourful turbans, used to cover their hair, which they must leave uncut.
That is one of the five articles of their faith they must carry all the time, known as the Five Ks: the Kesh (uncut hair), Kara (a steel bracelet), Kanga (a wooden comb), Kaccha (cotton underwear), and Kirpan (a curved dagger).
Sikhs worship God, known to them as Waheguru, or "wonderful teacher", inside gurdwaras, or "doorways to God". The word "Sikh" means the "seeker", or the "learner".
Male Sikhs bear the name "Singh", which means lion; while women go by "Kaur", or princess.
Who was Guru Nanak?
Guru Nanak was born in 1469 to a Hindu family at Nankana Sahib, a Pakistani city about 80 kilometres (50 miles) from the eastern city of Lahore.
Some legends say there were signs of divinity around him from the start, such as the time a cobra was found rearing over his head -- not to attack him, but to shade him from the sun as he napped.
As he grew older the Guru began travelling, preaching a faith based on equality and one God.
He died in 1539 in the Punjabi town of Kartarpur, in modern-day Pakistan, where his remains are buried.
Nine gurus followed Guru Nanak and there is no living human successor, but the Guru Granth Sahib -- the Sikh holy book - is considered the 11th and eternal.
What happens on his birthday?
Sikhs around the world, but especially on the subcontinent, will come together to sing, pray, eat and hold sprawling processions to different gurdwaras.
Some of the biggest celebrations will be the site of their one of their holiest shrines, the Golden Temple in Amritsar, India.
Why is this year special?
Apart from it being the 550th anniversary, this year also saw the opening of the Kartarpur Corridor -- a secure land link allowing Indian Sikhs to visit the gurdwara in the Pakistani town where the Guru died.
The gurdwara at Kartarpur is so close to the India-Pakistan frontier that its white dome and four cupolas can be seen from across the border.
But the perennial enmity between the South Asian nations, arch-enemies since Pakistan was carved out of colonial India at independence from Britain in 1947, has meant that for decades Indians could not visit -- at least, not easily.
Many had likened it to Muslims being able to see Mecca or Medina, but never actually able to visit.


76 open 947 closed 100k stars 20k forks
overall, the main dude ljhard
has the dual role of community building and code-fixing, and explains the rationale, thus moving the debate from personal preferences to technical know-how to practical implementation (eslint configs)
at the bottom of the README, there is:
We encourage you to fork this guide and change the rules to fit your team’s style guide. Below, you may list some amendments to the style guide. This allows you to periodically update your style guide without having to deal with merge conflicts.
that means they are keenly aware that there are technical implications (as in, tools are there), and perhaps their success could be by acknowledging those and creating a sort of network/cooperation of the willing
i guess this is an example in which the discursive strategies on github are first and foremost established by the organization in such a way that prevents too much debate (commercial weight, acknowledgement of alternatives)
[https://github.com/airbnb/javascript/issues/2208#issuecomment-613067919] “the guide is a mixture of instruction and guidelines, and that’s OK” (as opposed to mostly guidelines for other guides) —the dude is also a member of the JS specification steering committee!
this issue is an example of having exeternal repos referecing: influence network also
again, very much about whether or not the linter rules would complain src
and about tools as solutions src
refers to the Airbnb config [https://github.com/airbnb/javascript/issues/1640#issuecomment-533237903]
the discussion is more about technical implementation rather than about stylistic debates: [https://github.com/airbnb/javascript/issues/1660] - it is mostly about asking ljhard
about his opinion
assumption that ESLint and Airbnb are tightly coupled, so that if it’s not in Airbnb it’s not possible (i.e. guide is exhaustive) src
he’s even fucking fixing code [https://github.com/airbnb/javascript/issues/1311]
[https://github.com/airbnb/javascript/issues/761#issuecomment-195756518] rational approach
kinda street-level bureaucracy, what ljharb
is doing
other technical justification src
what’s up with not closing questions?
seems the guide is based on experience rather than imposition: [https://github.com/airbnb/javascript/issues/216#issue-49306579]
First of all, great job on this guide, I agree with it almost 100%. All of this should really be common knowledge, but I sure as hell didn’t know most of these things when I started, so kudos for writing it all down.
the above dude is refering specifically to AirBnB (as the org)
which also makes sense: the guide itself is not up to debate, only its implementation
but then here he says that the guide is more important than the linter (#1 guide, which is solved for airbnb, #2 linter)
polling all contributors -> by opening the issue, they control the narrative, and also ruling out aeshtetic preferences, which commenters follow
reference to [https://github.com/airbnb/javascript/issues/1089#issuecomment-400710202] tc39, which ljhard
works for
this:
If avoiding it was an official stance, or if there was a real technical hurdle to using it, I would drop this. But I don’t like the idea of just arbitrarily banning something without technical merit.
[https://github.com/airbnb/javascript/issues/1089#issuecomment-259335955] personal preference doubled with invoking institutional authority
[https://github.com/airbnb/javascript/issues/1089#issuecomment-265802675] acknowledges changing the airbnb codebase
[https://github.com/airbnb/javascript/issues/1089#issuecomment-325798808] referring to a11y to settle a debate
[https://github.com/airbnb/javascript/issues/1089#issuecomment-510156670] “best practice” seems to be an overarching argument
[https://github.com/airbnb/javascript/issues/1408] nice didactic explanations, in which he concludes with “you’re free to fork”
[https://github.com/jsx-eslint/eslint-plugin-jsx-a11y/issues/527] following the town hall discussion, he concludes with “just override”
by the creator, listed on his website: [https://github.com/airbnb/javascript/issues/102]
[https://github.com/airbnb/javascript/issues/102#issue-22412698] GOLD reference to picasso concludes with the author forking
[https://github.com/airbnb/javascript/issues/2251#issue-647972614] begging for clarification so that it can be added to their rules, even though the maintainer is saying explicitly that it doesn’t matter
[https://github.com/airbnb/javascript/issues/1122] most commented issue (ish) is about technical clarity, and not debate //// going deep into functional vs. functional-like programming
[https://github.com/airbnb/javascript/issues/1365] most commented ish
[https://github.com/airbnb/javascript/issues/1365#issuecomment-664021365] there is no place for debate
[https://github.com/airbnb/javascript/issues/1103#issuecomment-545955046] it is how it is
[https://github.com/airbnb/javascript/issues/851] this one is just office hours
[https://github.com/airbnb/javascript/issues/1718#issuecomment-413965116] again, long discussion which ends up in tool-editing


Before Change
def load_ml_model(file_name):
from keras.models import load_model as keras_load_model
print("file_name")
print(file_name)
with open(file_name, "rb") as read_file:
base_pipeline = dill.load(read_file)
After Change
with open(file_name, "rb") as read_file:
base_pipeline = dill.load(read_file)
if isinstance(base_pipeline, utils_categorical_ensembling.CategoricalEnsembler):
for step in base_pipeline.transformation_pipeline.named_steps:
pipeline_step = base_pipeline.transformation_pipeline.named_steps[step]
try:
if pipeline_step.get("model_name", "reallylongnonsensicalstring")[:12] == "DeepLearning":
pipeline_step.model = insert_deep_learning_model(pipeline_step, file_name)
except AttributeError:
pass
for step in base_pipeline.trained_models:
pipeline_step = base_pipeline.trained_models[step]
try:
if pipeline_step.get("model_name", "reallylongnonsensicalstring")[:12] == "DeepLearning":
pipeline_step.model = insert_deep_learning_model(pipeline_step, file_name)
except AttributeError:
pass
else:
for step in base_pipeline.named_steps:
pipeline_step = base_pipeline.named_steps[step]
try:
if pipeline_step.get("model_name", "reallylongnonsensicalstring")[:12] == "DeepLearning":
pipeline_step.model = insert_deep_learning_model(pipeline_step, file_name)
except AttributeError:
pass
return base_pipeline
// if isinstance(base_pipeline, utils_categorical_ensembling.CategoricalEnsembler):


SAA – There is nothing to rescue
by Jamie McKaneThe strike at SAA will result in the downfall of the entire airline, according to acting chair Thandeka Mgoduso.
The Sunday Times reports that SAA is currently surviving on the goodwill of its lenders and could struggle to pay salaries at the end of the month due to a lack of income caused by the strike.
SAA told Parliament that it would not be able to survive the strike and could face liquidation as a result.
“If this strike perpetuates and there is no money coming into the company, everyone that we owe will want their money and where does the money come from?” Mgoduso said.
There is no point in talking about business rescue, Mgoduso added, as SAA cannot be rescued.
“There is nothing to rescue and that is why we are doing what we are doing to ensure that we return the company to a state where it can be turned around,” she said.
“The employees that are on strike are the ones that are going to cause SAA to close.”
Mgoduso said that the striking employees must “carry on their consciences” that they are responsible for the death of the state-owned airline.
Tough decisions
The South African government recently stated that it would take a tough approach to the troubles at SAA.
“If some tough decisions need to be made, we’ll make them,” Public Enterprises Minister Pravin Gordhan said.
The government will repay loss-making SAA’s outstanding government-guaranteed debt of R9.2 billion over the next three years, the National Treasury said in October.
Lenders are demanding a firm repayment plan as a condition for agreeing to extend more funding, SAA has said.
SAA has lost more than R28 billion over the last 13 years and relies on financial support from the government to remain solvent and operational.


Malcolm X And The Nation Of Islam
After his release from prison Malcolm helped to lead the Nation of
Islam during the period of its greatest growth and influence. He met
Elijah Muhammad in Chicago in 1952 and then began organizing temples
for the Nation in New York, Philadelphia, and Boston and in cities in
the South. He founded the Nation’s newspaper, Muhammad Speaks , which
he printed in the basement of his home, and initiated the practice of
requiring every male member of the Nation to sell an assigned number
of newspapers on the street as a recruiting and fund-raising
technique. He also articulated the Nation’s racial doctrines on the
inherent evil of whites and the natural superiority of Blacks.
Malcolm rose rapidly to become the minister of Boston Temple No. 11,
which he founded; he was later rewarded with the post of minister of
Temple No. 7 in Harlem, the largest and most prestigious temple in the
Nation after the Chicago headquarters. Recognizing his talent and
ability, Elijah Muhammad, who had a special affection for Malcolm,
named him the National Representative of the Nation of Islam, second
in rank to Muhammad himself. Under Malcolm’s lieutenancy, the Nation
claimed a membership of 500,000. The actual number of members
fluctuated, however, and the influence of the organization, refracted
through the public persona of Malcolm X, always greatly exceeded its
size.
An articulate public speaker, a charismatic personality, and an
indefatigable organizer, Malcolm X expressed the pent-up anger,
frustration, and bitterness of African Americans during the major
phase of the civil rights movement from 1955 to 1965. He preached on
the streets of Harlem and spoke at major universities such as Harvard
University and the University of Oxford. His keen intellect, incisive
wit, and ardent radicalism made him a formidable critic of American
society. He also criticized the mainstream civil rights movement,
challenging Martin Luther King, Jr.’s central notions of integration
and nonviolence. Malcolm argued that more was at stake than the civil
right to sit in a restaurant or even to vote—the most important issues
were Black identity, integrity, and independence. In contrast to
King’s strategy of nonviolence, civil disobedience, and redemptive
suffering, Malcolm urged his followers to defend themselves “by any
means necessary.” His biting critique of the “so-called Negro”
provided the intellectual foundations for the Black Power and Black
consciousness movements in the United States in the late 1960s and
’70s (see Black nationalism). Through the influence of the Nation of
Islam, Malcolm X helped to change the terms used to refer to African
Americans from “Negro” and “coloured” to “Black” and “Afro-American.”
In your free time, you should read more about this great man on his
Wikipedia entry.


I am trained in VueJs, React, JavaScript, CSS. I have also explored AngularJs for Web Development
I have worked with tools for UX/UI and have researched effective UX/UI design. I desire to grow my Knowledge in this area
I have worked with Backend Frameworks that makes working with RestFul API easy like SailsJs and PHP
Through my freelance work, I have developed skills in Adobe Photoshop, Premiere Pro, and other Creative Cloud Suite Program


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Water the World - #Hacks4Water
Grundfos
Description
753 million people is without clean drinking water.
More than 1 billion liter drinking water is lost in London every day. Help solve this problem.
Technologies provided
- Big Data - Grundfos Dormitory
Are you interested in using a data driven approach to energy optimize an apartment or rethink the indoor climate? Get access to year's data from 150 apartments in the Grundfos Dormitory located at Aarhus Ø
- Entering the Augmented Reality
In Grundfos we have exploted the new possibilities of augmented reality for training of new employees and commissioning of pump systems. Find your way to merge the physical world with the cyber world by either programming Microsoft HoloLens in Unity's 3D environment or by using the already implemented functionalities
- Big Data - AQtap Water ATM
The Grundfos AQtap is an intelligent water ATM addressing reliable and sustainable water supply in the developing world. You get access to a data set from several AQtaps installed in Africa showing water consumption patterns.
- SCALA2 pump
SCALA2 is a fully integrated water booster pump providing constant pressure with multiple water sources running at the same time. It packs pump, motor, tank, sensor, drive and non-return valve into one compact unit. This SCALA2 has been enabled with Bluetooth Low Energy for AUHack, giving you the ability to remotely control it and gather data from it. SCALA2 data can thereby tell you a lot of i.e. usage patterns of homeowners.
- MGE motor
One of the most efficient motors in the world is the Grundfos MGE. This MGE has been enabled with Bluetooth Low Energy, giving you the ability to remotely control it and gather data from it. The MGE motor is used as driver for a lot of different pumps and will tell you a lot about how a pump is running.
- Bluetooth Dongle
You can use your own Bluetooth Enabled HW for communication with our products. Otherwise, an easy connectivity option is our Bluetooth Dongle, which makes your Bluetooth connection seem as a serial port.
Got any questions or technical problems?
Feel free to ask us about anything, any time. Simply come find us at our stand. Our mentors specializes in:
Python machine learning package, Clustering algorithms, Supervised and unsupervised learning, Embedded programming, UX/UI, Digital Businnes Models, Software concept prototypin, IoT, 3D models, text mining and much more.


SECTION: 300-HTTP TITLE: virtual QUESTION: Does Jetty support virtual hosts?
Many domain names can be mapped to a single TCP/IP address. If different content needs to be served for each different domain, then the virtual hosts mechanism needs to be used.
A HttpContext can be registered against one or more virtual host names. Only requests that have a matching host header or fully qualified URL will be passed to that context.
The setVirtualHosts method can be used to set an array of virtual host names on a Context. In the jetty.xml file, this can be done with:
<Call name="addWebApplication"> <Arg>/context</Arg> <Arg>./webapps/myapp</Arg> <Set name="virtualHosts"> <Array type="java.lang.String"> <Item>www.acme.com</Item> <Item>acme.com</Item> <Item>www.wileyc.com</Item> <Item><IP_ADDRESS></Item> </Array> </Set> </Call>
A null virtual host name is the same as no virtual host names and means the context is available to requests that do not first match other virtual host contexts.
If you want different content to be served from different real IP addresses, then you do not need virtual hosts. Rather you need multiple instances of HttpServer, each with their own listeners and contexts.


Hi All ,
it's Bahaa Qasem.
Work Experience:
- Web Developer(Content)
- Quality Analyst
- Intern in Fullstack Course
Top 10 Movies for Me:
- Get Out. ...
- Se7en. ...
- Fast &furious. ...
- Shutter Island. ...
- The Others. ...
- The Girl With The Dragon Tattoo. ...
- Memento. ...
- Gone Girl. ...
- Brave Heart. ...
- Gladiator. ...


--- layout: post title: "On Call" subtitle: "Misadventures in Pager Duty" date: 2021-05-01 12:00:00 -0400 background: '/img/posts/05.jpg' ---
First time doing pager duty, with what I still call my "new job", despite having worked on this project for over a year, while concurrently keeping the prior project alive-ish. But that's another article altogether.
I signed up online and set up the schedule to include myself and two other new-ish folks to the on call rotation, and totally forgot about it. Two weeks later, Slack notified me that I was on call. I turned on notifications in the support channel so I wouldn’t miss anything and with no small amount of dread, waited and worked.
The first notice came at 10:30pm. I was already in bed when my phone binged. I read the request. Someone in Japan wasn’t getting the test content that they wanted to preview before sending to actual customers (100? 1000? 10,000? More?). It sounded important. The Slackbot had been set up - thank goodness - to send links to the Splunk logs on this specific communication.
I was immediately grateful to past-me, who had thoughtfully requested access to Splunk weeks ago. I had been interviewing with a monitoring company, I knew I had pager duty coming up, plus it’s always good to see under the hood. I clicked on the links and dashboards loaded with details about the 4+ application services this communication had used to be set up. Content was there. Audience was there. Shoot, everything looked like it should work.
I responded in the support channel, “Everything looks good on this end”. The previously frustrated user pinged back, “I figured it out, thanks for looking”.
Breathing a sigh of relief, I turned out my light and hoped the rest of the week on call would go this well.
Sure, almost all questions and issues were handled either by on call personnel in other teams when the issue related to their work, or by the all mighty Slackbot. I was even helpful on a couple of occasions.
Then Monday happened.
My on-call ended on Wednesday morning, I was so close to getting through without a 4 alarm fire, when our Jenkins instance stopped building with a less-than-helpful error message.
Teaming up with others, we tracked down the message as relating to the service user. Simple, right? Not quite. All continuous integration was halted. No CD happened. Which turned out to be in my on-call favor, since everyone on the team had a stake in making sure this was fixed.
I did turn off my computer on Monday evening at 8pm, with only one other person working with me on getting that service user account password updated and verified. I was up at 6am and online running tests while the electric tea kettle started to make my first cup of coffee water.
I took down nodes and restarted services. I ran test commits. 22 hours of work later in 2 days, and we had builds running again.
Do I know why? Ummmmm, no. There wasn’t a clear action with a clear resolution. Just one time when I did a push, the build started. It could have been any number of things that got that user account reset - even something I had done.
Just in time to migrate to another version control solution that didn’t require the service user account password.


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| SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |
java.lang.Object org.apache.maven.archiva.dependency.graph.walk.WalkDepthFirstSearch
public class WalkDepthFirstSearch
Perform a walk of the graph using the DepthFirstSearch algorithm. NOTE: Default edgePredicate is to NOT traverse disabled edges.
| Field Summary |
|---|
| Fields inherited from interface org.apache.maven.archiva.dependency.graph.walk.DependencyGraphWalker |
|---|
PROCESSING, SEEN, UNSEEN |
| Constructor Summary | |
|---|---|
WalkDepthFirstSearch()
|
| Method Summary | |
|---|---|
org.apache.commons.collections.Predicate |
getEdgePredicate()
Get the predicate used to determine if the walker should traverse an edge (or not). |
java.lang.Integer |
getNodeVisitState(org.apache.maven.archiva.model.ArtifactReference artifact)
For a provided node, get the current node visit state. |
java.lang.Integer |
getNodeVisitState(DependencyGraphNode node)
|
void |
setEdgePredicate(org.apache.commons.collections.Predicate edgePredicate)
Set the predicate used for edge traversal |
void |
setNodeVisitState(org.apache.maven.archiva.model.ArtifactReference artifact,
java.lang.Integer state)
|
void |
setNodeVisitState(DependencyGraphNode node,
java.lang.Integer state)
|
void |
visit(DependencyGraph graph,
DependencyGraphNode startNode,
DependencyGraphVisitor visitor)
Visit every node and edge in the graph from the startNode. |
void |
visit(DependencyGraph graph,
DependencyGraphVisitor visitor)
Visit every node and edge in the entire graph. |
| Methods inherited from class java.lang.Object |
|---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
|---|
public WalkDepthFirstSearch()
| Method Detail |
|---|
public org.apache.commons.collections.Predicate getEdgePredicate()
DependencyGraphWalker
getEdgePredicate
in interface DependencyGraphWalker
public void setEdgePredicate(org.apache.commons.collections.Predicate edgePredicate)
DependencyGraphWalker
setEdgePredicate
in interface DependencyGraphWalker
edgePredicate
- the Predicate that returns true for edges that should be traversed.public java.lang.Integer getNodeVisitState(DependencyGraphNode node)
public java.lang.Integer getNodeVisitState(org.apache.maven.archiva.model.ArtifactReference artifact)
DependencyGraphWalker
getNodeVisitState
in interface DependencyGraphWalker
DependencyGraphWalker.UNSEEN
, DependencyGraphWalker.PROCESSING
, or DependencyGraphWalker.SEEN
)public void setNodeVisitState(DependencyGraphNode node, java.lang.Integer state)
public void setNodeVisitState(org.apache.maven.archiva.model.ArtifactReference artifact, java.lang.Integer state)
public void visit(DependencyGraph graph, DependencyGraphVisitor visitor)
DependencyGraphWalker
visit
in interface DependencyGraphWalker
graph
- the graph to visit.visitor
- the visitor object to use during this visit.public void visit(DependencyGraph graph, DependencyGraphNode startNode, DependencyGraphVisitor visitor)
DependencyGraphWalker
visit
in interface DependencyGraphWalker
graph
- the graph to visit.startNode
- the node to start the visit on.visitor
- the visitor object to use during this visit.
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2 Chronicles 13:18
Thus the children of Israel were brought under at that time, and the children of Judah prevailed, because they relied upon the LORD God of their fathers.


EPAMINONDAS
Copyright (c) 1963 Robert Abbott
This game began life as "Crossings". Invented in 1963, the rules were first published in Sid Sackson's "Gamut of Games" in 1969. At that time, the was played on an 8 x 8 checker board. When the game was revised & published in 1975, the board was increased to a 12 x 14 grid. [...] The game is named after Epaminondas, the Theban Leader who invented the phalanx. He used the formation to defeat the Spartans in 371 B.C. [taken from www.members.iex.net/~rfinn/gameshlf/abstract/espnim/epanim.htm]
Epaminondas is a two player game played on a 12x14 square board. This is the initial setup:
- PHALANX - A Phalanx is an unbroken line of one or more friendly stones on any orthogonal or diagonal direction.
- A Phalanx may have friendly or enemy neighbors, there are no restrictions on its adjacent cells.
- MOVE - Stones move on phalanxes forward or backward along its length.
- The move range is up to the number of stones on the Phalanx.
- Phalanxes never move sideways!
- A single stone is a Phalanx of size 1, and so can move to any adjacent cell.
- CAPTURING - If a Phalanx encounters, while its moving, a smaller enemy Phalanx, the latter is captured and removed from the board.
- The capturing Phalanx stops on the cell where was the first enemy captured stone.
- GOAL - Wins the player that at the beginning of his turn, has more stones on his last rank, than the opponent has.
Some examples Black has two major Phalanxes, one diagonal and one horizontal. If Black moves to cell [2] (preparing a stronger attack against the White diagonal), he can suffer an attack from the stronger horizontal White Phalanx on the right (and so loose all 3 stones). He then must move the lower stone to [1] in order to defend his position.
There is a ZRF to play Epaminondas with Zillions Epaminondas can also be played at Richard's Rognlie's game server. Check here! There is an hexagonal variant called Heximinondas.
There is also a similar new game (July 2000) called Force, designed by Chris Huntoon. When reaching last rank, the stone is promoted and the goal is to reduce the opponent's army to less than two stones, or promote two of his own stones. There is a ZRF to play Force with Zillions.
A mix with Abalone is Abanondas:
Like Epaminondas but phalanxes may also make 1-step orthogonal/diagonal sideslips//orthogonal sidesteps, provided all target cells are empty. Diagonal phalanxes can only make orthogonal sideslips.
 1.  2.  3.  4.  o .  6.  7.  8.  9.  x . . 10.  11.  12.  13.  14. c2.c8 - b3 b15 - c15
. . x x x x . . x x . . 15. b2.b9 - a10 i9.i13 - j9
16. a1.a10: a13:3 b14.h14 - a14
a b c d e f g h i j k l 17. ...(capturing 6 times )
23. i4.j4 g15.h15 - j15
24. j8.j4 - k9 j9.j13 - j6
25. b1.f1 - g1 resigns


The Idea:
This is supposed to get us thinking about the various dimensions our testing should address. If there are states orthogonal to each other (eg. readable vs unreadable, logged in vs not logged in) each of those states should comprise a dimension in the matrix. By addressing it this way, we should be able to minimize the amount of setup/teardown code and get full coverage across our actions for all these edge cases and as a result have extremely clear tests.
Example Test Matrix Specification:
matrix :example, :edge1, :edge2, :edge3, … action :action1, :OK, :e_NF, :mod, … action :action2, :OK, :e_RO, :na, … action …
Matrix:
I envision the setups being a code that combines the different dimensions of edge case state.
Something for a CMS might look like: `[df]_[ugo]_[rRwW]` where:
+ `[df]` for dir/file. + and the rest is in the style of symbolic args to chmod:
+ u/g/o = user, group, or other + lowercase `X` == `X`able, uppercase `X` == un`X`able, where `X` is read/write.
Action:
:new/:err/:del are just examples, they should have semantic info attached to them.
Use :na to specify an inapplicable edge case for that action.
Use :OK to specify the standard positive state. It is equivalent to a result with the same name as the action. (eg matrix_test_index). This cleans up the matrix a lot and allows for narrower and more readable columns.
Edge cases specific to an action that fall outside the matrix are regular tests.
Matrix Methods (the legos):
Everything else basically equates to lego pieces:
+ There is one “init” method per matrix: matrix_init_#{descr}(setup_args) + There is one “setup” method per action: matrix_setup_#{action}(setup, expect) + There is one “test” method per result: matrix_test_#{result}(setup)
Thus, for the matrix “example” above, the top left-most test will end up calling:
matrix_init_example(:edge1) matrix_setup_action1(:edge1, :new) matrix_test_new(:edge1)
Read the action method for exact details.
- MODULE FunctionalTestMatrix


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[gecode-users] BoolExpr example
Mikael Zayenz Lagerkvist
zayenz at gmail.com
Fri Nov 21 07:57:49 CET 2008
On Fri, Nov 21, 2008 at 4:13 AM, Malcolm Ryan <malcolmr at cse.unsw.edu.au> wrote:
> 1) What's the difference between BoolVarArgs and BoolVarArray?
BoolVarArgs is optimized for constructing temporary argument arrays to
pass to constraints. BoolVarArrays are intended to be used for storing
BoolVars in a Space.
> 2) Could you explain in more detail what ~ does?
The ~-operator takes a linear relation and reifies it (makes it a BoolExpr).
> 3) Likewise, what does tt() do?
It enforces that a Boolean expression should be true. There is an
corresponding function ff for enforcing it to be false.
> 4) Under exactly what conditions does post() create a BoolVar?
When the expression posted is a BoolExpr and not a BoolRel.
> 5) How's the documentation coming along?
I'll leave this question for Christian.
Cheers,
Mikael
--
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Event
{{typeOfPlatform === 'aws' ? "PutItem" : "*"}}
Table name must contain only letters, numbers, hyphens, underscores or periods. Enter atleast 3 characters
Table name Should not begin or end with special character.
Function would be triggered whenever a new entry is added to the table. Note that the DynamoDB table should exist already and Jazz creates a new stream for this table
Function would be triggered whenever a new entry is added or updated to the table. Note that Jazz will create the Cosmos DB table
Event
{{typeOfPlatform === 'aws' ? "PutRecord" : "*"}}
Stream name must contain only letters, numbers, hyphens, underscores or periods.
Stream name Should not begin or end with special character.
Function would be triggered whenever the Lambda checkpoint has not reached the end of the Kinesis stream
Function would be triggered whenever respond to an event sent to an event hub event stream
Event
{{typeOfPlatform === 'aws' ? "PutItem" : "*"}}
Bucket name must contain only lowercase letters, numbers or hyphens. Enter atleast 3 characters
Bucket name Should not begin or end with special character.
Function would be triggered when an object is added or modified inside the bucket. Creating this lambda trigger will override any previously created triggers on this bucket for any ObjectCreated:*
Function would be triggered whenever a new or updated blob is detected. The blob contents are provided as input to the function
Queue name must contain only letters, numbers, hyphens or underscores.
Queue name Should not begin or end with special character.
Function would be triggered whenever new messages are added to the source SQS queue
Function would be triggered whenever new messages are added to the source service bus queue
Event
{{typeOfPlatform !== 'azure' ? "PutItem" : "*"}}
Table name
must contain only letters, numbers, hyphens, underscores or periods. Enter atleast 3 characters
Table name Should
not begin or end with special character.
Cosmos DB Trigger uses the Azure Cosmos DB Change Feed to listen for inserts and updates across partitions. The change feed publishes inserts and updates.
Event
{{typeOfPlatform !== 'azure' ? "PutRecord" : "*"}}
Event Hub name
must contain only letters, numbers, hyphens, underscores or periods. Enter atleast 3 characters
Event Hub name Should not
begin or end with special character.
Function trigger to respond to an event sent to an event hub event stream.
Event
{{typeOfPlatform !== 'azure' ? "PutItem" : "*"}}
Storage
Account must contain only letters, numbers, hyphens, underscores or periods. Enter atleast 3 characters
Storage Account
Should not begin or end with special character.
Blob storage trigger starts a function when a new or updated blob is detected. The blob contents are provided as input to the function.
Service Bus name
must contain only letters, numbers, hyphens, underscores or periods. Enter atleast 3 characters
Service Bus name Should
not begin or end with special character.
Function trigger to respond to messages from a Service Bus Queue.


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java.lang.Object edu.biu.scapi.interactiveMidProtocols.sigmaProtocol.elGamalEncryptedValue.SigmaElGamalEncryptedValueCommonInput
public class SigmaElGamalEncryptedValueCommonInput
Concrete implementation of SigmaProtocol input, used by the SigmaElGamalEncryptedValue verifier and simulator.
There are two versions of SigmaElGamalEncryptedValue protocol, depending upon if the prover knows the secret key or it knows the randomness used to generate the ciphertext.
This common input contains an ElGamal public Key, the encrypted value x, the ciphertext and a boolean indicates is the prover knows the secret key or the random value.
| Constructor Summary | |
|---|---|
SigmaElGamalEncryptedValueCommonInput(boolean isRandomness,
ElGamalOnGroupElementCiphertext cipher,
ElGamalPublicKey publicKey,
GroupElement x)
Sets the given ciphertext, public key and encrypted value. |
| Method Summary | |
|---|---|
ElGamalOnGroupElementCiphertext |
getCipher()
Returns the ciphertext. |
ElGamalPublicKey |
getPublicKey()
Returns the publicKey used to encrypt. |
GroupElement |
getX()
Returns the encrypted value. |
boolean |
isRandomness()
Returns a boolean represents if the encryption was done by private key knowledge or by a randomness knowledge. |
| Methods inherited from class java.lang.Object |
|---|
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
|---|
public SigmaElGamalEncryptedValueCommonInput(boolean isRandomness, ElGamalOnGroupElementCiphertext cipher, ElGamalPublicKey publicKey, GroupElement x)
There is also an argument represents if the encryption was done by private key knowledge or by a randomness knowledge.
isRandomness
- represents if the encryption was done by private key knowledge or by a randomness knowledge.cipher
- ciphertext outputed by the encryption scheme on the given xpublicKey
- used to encrypt.x
- encrypted value| Method Detail |
|---|
public boolean isRandomness()
public GroupElement getX()
public ElGamalPublicKey getPublicKey()
public ElGamalOnGroupElementCiphertext getCipher()
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As a computer science and English double major, I value creativity and meaning in my work. I am passionate about designing products that leave a positive impact on people, the environment and society. Currently a student at Amherst College.💜
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