Definition: The process of identifying the most important stakeholders and giving highest priority to pursuing strategies that satisfy their needs
Steps:
Identify stakeholders
Identify stakehoders' interests and concerns
Identify what claims stakeholders are likely to make on the organization
Identify stakeholders who are most important from the organization's perspective
Identify resulting strategic challenges
The Unique Role of Stockholders
Stockholders are legal owners and the providers of risk capital (a major source of capital that allows a company to operate its business)
No guarantee they will recoup their investment or earn a return
Managers typically seek to maximize returns that stockholders receive
Agency Theory
Definition: Examines the problems that can arise in a business relationship when one person delegates decision-making authority to another
Principal-agent relationship
Arises when one party delegates decision-making authroity or control of resources to another
The agency problem
Arises when agents and principals have different goals and if agents take actions that are not in the best interests of their principals
Enabled by the fact that agents normally have more information than principals (information asymmetry)
Ethics and Strategy
Preeminent goal of managers is to pursue strategies that maximize long-term profitability and growth in order to boost returns to stockholders
However, actions should be consistent with applicable laws and ethics
Common causes of unethical behavior:
Flawed personal ethics among managers
Neglecting to consider ethical implications of decisions in favor of straightforward economic calculus
Organizational cultures that deemphasize ethics
Pressure to meet unrealistic performance goals
Unethical leadership
Ethics and Philosophy
The Friedman doctrine - businesses' only social responsibility is the pursuit of profit, subject to the constraint that the engage in free and open competition
Utilitarian ethics - the moral worth of actions is determined by their consequences
Kantian ethics - people should be treated as ends and nevers purely as means to the ends of others
Rights theories - humans have fundamental rights and priviliges that establish a minimum level of morally acceptable behavior
Justice theories - focus on the attainment of a just distribution of economic goods and services
Ensuring Basic Ethical Principles
Favor hiring and promoting people with a well-grounded sense of personal ethics
Build an organizational culture that places a high value on ethical behavior
Ensure that leaders within the business not only articulate the principles of ethical behavior but also act in a manner consistent with their words
Establish decision-making processes that require people to consider the ethical dimension of decisions


Overview¶
MoP (“Master of Puppets”) is an open source framework for reverse engineers who wish to create and operate trackers for new malware found in the wild for research purpose. To make it simple - MoP framework takes care of all the generic malware tracker stuff so the reverse engineer is left with pure reverse engineering work, You only need to implement a simple plugin on top of MoP which describes the malware’s network protocol.
MoP ships with a variety of workstation simulation capabilities, such as: fake filesystem manager, fake process manager, multi-worker orchestration, TOR integration and more. All aiming to deceive adversaries into interacting with our simulated environment and possibly drop new unique samples.
Since everything is done in pure python, no virtual machines or Docker containers are needed and no actual malicious code is executed. All of which enables us to scale up in a click of a button, connecting to potentially thousands of different malicious servers at once from a single instance running on a single laptop.
MoP framework comes with a number of pre-built plugins for known RATs, such as NjRAT and Gh0stRAT, Which have been showcased live at BlackHat Arsenal 2019!


| Price | ETH | BTC | Sum BTC |
|---|---|---|---|
| Trident | Internet Explorer 4.0 | Win 95+ | 4 |
| Trident | Internet Explorer 4.0 | Win 95+ | 4 |
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| Trident | Internet Explorer 4.0 | Win 95+ | 4 |
| Trident | Internet Explorer 4.0 | Win 95+ | 4 |
| Trident | Internet Explorer 4.0 | Win 95+ | 4 |
| Trident | Internet Explorer 4.0 | Win 95+ | 4 |
| Trident | Internet Explorer 4.0 | Win 95+ | 4 |
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| Price | ETH | BTC | Sum BTC |
|---|---|---|---|
| Trident | Internet Explorer 4.0 | Win 95+ | 4 |
| Trident | Internet Explorer 4.0 | Win 95+ | 4 |
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| Trident | Internet Explorer 4.0 | Win 95+ | 4 |


Person Repository
Employee
View Employee
ADD Employee
Update Employee
Delete Employee
Find Employee by Name
Student
View Student
Add Student
Update Student
Delete Student
Find Student By Name
Employee
Id
Name
Address
Email
Phone
Employee:
Delete
Employee:
Find
Employee:
Add
Employee:
Update
Student
Id
Name
Address
Email
Phone
Student:
Delete
Student:
Find
Student:
Add
Student:
Update


Welcome to [
T
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hi
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blog.tangzhixiong.com
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Projects
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RelAlg.js tutorial
I'm very glad that that you've taken the time to come help me
test out RelAlg.js. In the process you'll hopefully learn a
little more about relational algebra.
— Morten
Lets get started!
This tutorial will take the form of a series of questions. These
often require you to perform tasks without using RelAlg.js at
first.
This is to evaluate how much of a help using RelAlg.js is to you,
and it's therefore important that you actually try and preform them
either in your head or on paper.
For all exercises that you should use RelAlg.js, it will be clearly
stated.
After each question, there will be a rating-bar. This will be a 1-5
rating of how much you agree with the assessment.
You answer by clicking the circle (●) that best describes your your
answer.
For difficulty questions, 1 means a very difficult and 5 means that it was easy.
For helpfulness questions, 1 means that it didn't help you at all and 5 means it
made the job much easier.
For agreement questions, 1 means you totally disagree, and 5 means you totally
agree.
The first time a new part of relational algebra is used, there will be a block of text describing how to write that type of expressions in RelAlg.js
Those block will look like this one.
Example And sometimes they include an exampled, that will have this label infront of them
Everytime you need to solve a task, the description of the task will have a Task marker in front of it.
Occationally there's a little side-note for those that are interested in
some fun facts behind RelAlg.js. These are marked with a
Side-note label. You can safely
skip those if you are not interested.
Likewise, there are sometimes
Acknowledgement labels to let you
know that some information or data comes from another source.
Practise Expressions
So let's start out with some trivial expressions, just to get ourselves
familiarised with RelAlg.js and this tutorial.
Like much of the rest of this tutorial, we have the describe the
environment for our expressions. The environment given here, all have
a name (e.g. RA-sample) that corresponds to a dataset in
RelAlg.js. Sometimes the dataset also include other relations that are
not relevant to the question, and are thus not reproduced in this
tutorial.
| Foo | |
|---|---|
| A | B |
| 1 | 2 |
| 3 | 4 |
| Bar | |
|---|---|
| A | B |
| 1 | 2 |
| 5 | 6 |
| Baz | ||
|---|---|---|
| A | B | C |
| 1 | 2 | 3 |
| 5 | 6 | 7 |
The above enviroment should be fairly self-explanatory. We have two relations (Foo and Bar) that both have the same schema: <A, B>. Then We have a third relation Baz that also has a third attribute C.
Set Operations
A central building block of relational algebra is set operations – that is, using operations that compares the contents of two relations.
Set Operations
Relational Algebra contains the three main set operations: Union (∪), Intersection (∩) and difference (−).
In RelAlg.js, they are written likes in the following way: R ∪ S: R Union S, R ∩ S: R Intersect S and lastly R − S: R - S.
Without using RelAlg.js, write an expression that finds the tuples ("rows") that Foo have in common with Bar. Once you have an expression, again without using RelAlg.js, compute what relation the expression results in.
Enter the expression you wrote above into RelAlg.js and evaluate it against the Default dataset.
Hopefully the result from RelAlg.js should confirm the result you first found by hand. In this manner, RelAg.js can be used to verify that the expressions you write are valid, and in fact gives the result that was intended.
Let's move on to an expression that also involves modifying the schema of one of the relations before using it for a set operation.
Write an expression that finds the tuples of Foo, that does not have a values of <A,B> that is also found in a tuple of Baz. First calculate the result by hand, then try and evaluate your expression in RelAlg.js to verify your result.
Projection
In relational algebra you can drop attributes from a schema, or even reorder the attributes, using the projection operations: πA, ..., N R. So if your relation R has the schema <A,B,C> and you want to produce a new relation that only has <A, C> you would use πA,C R.
In RelAlg.js this is written like so: Project[A, ..., N](R).
Schema Operations
Quite often, relational algebra expressions require quite a few alterations to the schemas of the original relations. This is achieved with a mixture of renames and projections.
Renames
Sometimes you want to rename an attribute into something else. This is
often to later use the expression in a (conditional) join or cartesian
product.
In relational algebra, this is written as ρA/B R, which
renames the attribute A to B. In RelAlg.js this is written
as Rename[A/B](R).
Without using RelAlg.js, write an expression that changes the Baz relation so instead of having the schema <A, B, C>, it has the schema <charlie, able>, where charlie used to be the C-attribute, and similarly able used to be the A-attribute.
Okay, now that you know how to transform the schema of relations, it's time to try out joining two different relations into one. Remember that for cartesian product (R × S) and conditional joins (R ⋈θ S), the schemas of R and S needs to be disjoint – i.e. they can not overlap.
Criterias – For Conditional Joins and Selections
Criterias are used both for conditional joins R ⋈θ
S (which in RelAlg.js is written as R Join[θ] S) and
selections σθ R (which is written as
Select[θ](R)).
In relational algebra, criteria are normally written with the standard
math-syntax (∧ for and, ∨ for or, etc.). Because it's tedious
to write this on normal keyboards, RelAlg.js uses a slightly different
syntax.
The syntax that RelAlg.js uses is identical to that used of C or Java, that is == for equals, != for not-equals, and <, <=, > and >= for comparisons. And is written using && and or is witten with ||.
If you just write an attribute-name, it will use the value of the given attribute. For comparing against values, you can either use integers, floats or strings. Strings are written in single-quotes ' – i.e. 'a string'.
Example Say you want to find all the tuples ("rows") of Foo, that has an A-attribute greater than one and a B-attribute equals to the string M, you would write Select[A > 1 && B == 'M'](Foo).
Without using RelAlg.js write an expression that returns a relation with the schema <Foo_B, Baz_A> that contains the B-values from Foo and the A-values from Baz, where it holds that A from Foo equals B from Baz.
One of the main selling-points of RelAlg.js is the static type-checker that
will calculate the schema of the resulting relation for each and every
operation, and then check if this schema can be used for the next operation.
If not, it will highlight the expression that does not make sense, and
give an explanation for why it doesn't make sense.
Now try and take the expressions you wrote above, and write it into RelAlg.js. Did your expressions type-check? And did they produce the result you intended?
Address-book Expressions
Now let's progress from some very contrived examples to something that
has a bit more of a real-world feel to them.
For that we need a new environment with a new set of relations to write
expressions for.
Hopefully you have also figured out how to use RelAlg.js, and therefore you can now start out with writing your expression in RelAlg.js. This way you should be able to use the error-highlighting help you write out your expressions.
| People | |||
|---|---|---|---|
| pid | name | age | aid |
| 1 | John | 42 | 1 |
| 2 | Victor | 22 | 2 |
| 3 | Jane | 37 | 1 |
| 4 | Anna | 26 | 3 |
| 5 | Lindsey | 32 | 4 |
| Addresses | ||||
|---|---|---|---|---|
| aid | street | number | zip | country |
| 1 | Long st. | 1200 | 87501 | USA |
| 2 | Blvd. de Poisson | 86 | 65120 | France |
| 3 | Ave. de Beurre | 100 | 65120 | France |
| 4 | Broad Ave. | 587 | 87501 | USA |
Let's first start out simple, with a few expressions that doesn't involve too many schema-changes in order to enable the use of joins.
In RelAlg.js, write an expression that finds the people who live in the USA. The return-schema should be <pid, name>.
This type of joins can be rather useful if your relations are structure
akin to how you would design a normalised database structure.
However, the expressions you are going to write often involves self-joins
because you want to find e.g. the people that have their address in common.
This often requires a fair amount of renames before it is allowed. But let's
find out just how much.
Find the people that live together – i.e. have the same aid. The resulting schema should be <name1, name2, aid>. Don't worry about having two tuples ("rows") per couple sharing an address.
More complicated expressions
When writing more complicated expressions, it can often be nice to first write an expression that calculates some component of the final result, and then a second expression that then incorporates the results calculated by the first expression.
Storing the result of an expression as a named relation
If you just write an expression in RelAlg.js the results is stored in
relation called it. Any old results is overwritten. But
sometimes you might want to ensure that the result is not overwritten
and has a more meaningful name than it. For this you can use
assignments.
Name := Expression is the syntax used for assignments. Keep
in mind that any expression already existing with a given Name
is still overwritten using assignments.
Example You can store a relation of peoples names using Names := Project[name](People).
Side-note The name it for unnamed relations is a throwback to languages such as Standard ML that uses it for the result of the last expression evaluated.
Let's revisit our list of couples. Write an expression that instead returns a relation with the same schema as People that only contains the people that shares an address with someone else. Let's call this relation for TakenPeople.
Now our environment has been extended with new relation we can use in future in cases were we would happen to need a list of taken people.
Write a expression that calculates all the single people – single is understood to be not sharing an address with someone else. The result should have the same schema as People. You could write a expression that only uses People, but it is much simpler if it also relies on TakenPeople.
To further demonstrate how useful it can be, to start thinking of useful sub-expressions to store in (temporary) relations, let's have one more slighly more complicated example.
Write an expression that find potential couples – that is, single people that share zip-code and country. The result should have the schema <name1, name2, zip, country>. Again, don't worry about having two tuples ("rows") per potential couples.
If we didn't have the SinglePeople relation we first defined
using an expression, the above expression would probably have been
rather convoluted to write.
Having the sub-expression as a relation in the environment also allows
you to confirm that it does in fact contain the data you imagined to.
Possible improvements to RelAlg.js
Currently RelAlg.js does not support evaluating more than a single expression at a time. So let's imagine that RelAlg.js works similarly to other programming languages, where you can have multiple expressions seperated by a semi-colon, e.g.
Sub5 := Select[A < 5](Data); Above5 := Data - Sub5;
Expressions as Graphs
We can also imagine an expression like a graph – actually as a tree. At the bottom of the tree (i.e. the leaves) are expressions, and each point on the graph (node or vertice, if you like) are an expression. So if we start at each leaf, and work our way up evaluating the expressions on the way, we end up with our result as we hit the top (root) of the tree.
Side-note For those interested, this expression graph is actually the abstract syntax tree (AST) of the parsed relational algebra expression. Expressions are evaluated by a post-order tree-travels of the tree.
Below are an example of how an expression can be turned into a graph.
| Expression | Graph |
|---|---|
|
In relational algebra: Or in RelAlg.js syntax Project[B,C]( Select[A>5]( Select[B!=2](Foo) Union Rename[temp/A]( Rename[B/A]( Rename[A/temp](Bar) ) ) ) ) |
So the question then is, does having such a graphical representation of an expression make it easier to understand the expression? In this case, it is a very nonsensical expression, so let's try again with an expression that is actually meaningful. This second example is against the RS-sample environment.
| Expression | Graph |
|---|---|
|
In relational algebra: Or in RelAlg.js syntax: Project[beer] ( ( Project[name] (Drinker) - Rename[drinker/name]( Project[drinker]( Select[bar == 'James Joyce Pub']( Frequents ) ) ) ) Join[drinker == name] Likes ) |
Here the written expression starts becoming quite complicated – especially in the relational algebra syntax where there isn't even any indentation to keep up orientated about when each part ends.
Without first looking at the explanation given just below, try and guess what the above expression returns, first by looking at the written expression and then by looking at the graph.
Explanation In case you couldn't quite figure out what the expression above is supposed to calculate, here's an attempt at interpreting the graph. Hover over the blurred text to see.
Easy, right? Okay, maybe not easy, maybe easier than trying to decipher the written expression.
So now the question is, if you found it useful and easier to understand expressions when they are represented as a graph, instead of a written expression.
Beer-drinker Expressions
Time for the final data-set. This time we six relations to deal with, so we can create some more complicated expressions involving multiple joins.
If you feel it will help you, you are welcome to split any of the expressions you are asked to write into smaller sub-expressions, and create new "temporary" relations that you can then build upon.
Ensuring the correct evaluation order of joins
If you don't know if the relations are joined in the order you want to,
you can always take a look at the expression-graph.
If you wrap an expression in parentheses, you will ensured that that
part will be evaluated first.
Example The expression Foo X Bar X Baz is equivalent to (Foo X Bar) X Baz. If you really meant to take the cartesian product of Bar and Baz first, you should write Foo X (Bar X Baz).
Side-note In technical terms, this behaviour is call being left-associative. And in relational algebra, the operators also have different precedence-levels. ×, ⋈, − and / are all evaluated before ∩ and ∪, unless overwritten by enclosing it in parentheses.
| Bar | |
|---|---|
| name | address |
| Down Under Pub | 802 W. Main Street |
| The Edge' | 108 Morris Street |
| James Joyce Pub | 912 W. Main Street |
| Satisfaction | 905 W. Main Street |
| Talk of the Town | 108 E. Main Street |
| Beer | |
|---|---|
| name | brewer |
| Amstel | Amstel Brewery |
| Budweiser | Anheuser-Busch Inc. |
| Corona | Grupo Modelo |
| Dixie | Dixie Brewing |
| Erdinger | Erdinger Weissbrau |
| Drinker | |
|---|---|
| name | address |
| Amy | 100 W. Main Street |
| Ben | 101 W. Main Street |
| Coy | 200 S. Duke Street |
| Dan | 300 N. Duke Street |
| Eve | 100 W. Main Street |
| Frequents | ||
|---|---|---|
| drinker | bar | times_a_week |
| Amy | James Joyce Pub | 2 |
| Ben | James Joyce Pub | 1 |
| Ben | Satisfaction | 2 |
| Ben | Talk of the Town | 1 |
| Coy | Down Under Pub | 1 |
| Serves | ||
|---|---|---|
| bar | beer | price |
| Down Under Pub' | Amstel | 2.75 |
| Down Under Pub | Budweiser | 2.25 |
| Down Under Pub | Corona | 3.00 |
| The Edge | Amstel | 2.75 |
| The Edge | Budweiser | 2.50 |
| Likes | |
|---|---|
| drinker | beer |
| Amy | Amstel |
| Amy | Corona |
| Ben | Amstel |
| Ben | Budweiser |
| Coy | Dixie |
Notice Please note that the above given environment is actually only a subsection of the entire data-set. All relations have been shortened to only show their first 5 lines, to make it more readable. See the full relations in RelAlg.js.
To start out, let's consider Ben. He is quite fond of going to bars to drinks (as evident from the many bars he frequent). But he's also fond of drinking on the cheap.
Write an expression that gives the bars serving the beers that Ben like, with the address of the bar and the price of the beer. The schema should be <bar, address, beer, price>.
Now suppose that Ben likes to go out drinking with Amy. He wants to ensure that they have a nice evening, so he wants to go to a bar that serves all the beers they like.
The For-all of relational algebra: Division
In relational algebra, there is a special operator that doesn't
really have a one-to-one equivalent in SQL. It's the division
operator R ∕ S, that in RelAlg.js is written
using a normal forward-slash: R / S.
It can almost be considered the reverse of cartesian products
(R × S, or in RelAlg.js R X S). It
returns a relation of the attributes that is unique to R,
where for values of R, they must have a values for
the shared attributes present for each tuple ("row") in S.
Example If you have a relation R with the schema <a, b> and relation S with the schema <b>, then the expression R / S finds the a's of S, where the values of b for each a is equal to all of the b's in S.
Write an expression that finds the subset of bars that serves all the beers that Amy and Ben likes. The schema should be identical to that of Bar, namely <name, address>. You might want to consider splitting this up into smaller expressions.
Please finish the rest of the survey too, thank you.
Overall Evaluation
Great work making it through all of the tutorial! To round up the evaluation part of the tutorial, here's a few last questions to help evaluate the usefulness of RelAlg.js.
Review and Submit Evaluation
First of all, thank you so much for taking the time to walk through this tutorial and answering all the questions. Now you just need to submit the answers! If you want to, you can also use the table below to review your answers before submitting.
| Question | Answer |
|---|


Watch: FIVE times daddy cool Akshay Kumar shared adorable videos of Nitara
by TIMESOFINDIA.COMThe Khiladi of Bollywood Akshay Kumar is not just a spectacular actor but also a doting father. He occasionally shares pictures and videos of his children on social media, especially of his daughter Nitara. Each time he shares a post on Instagram it just melts our hearts as the actor leaves no stone unturned to shower his love on the little girl. He also makes sure to impart the right values and wisdom to her. Whether it’s flying kites, exercising or travelling on a train, for Akshay every moment he spends with Nitara is pure bliss.
Here are the five videos of Nitara shared by daddy cool Akshay which are way too adorable
Journey by 'Housefull 4' express
Akshay was accompanied by his daughter Nitara on the special journey, for 'Housefull 4' promotions. He was a bit worried about how she would keep herself entertained throughout the journey. However the smart girl not just managed well, but she even built a tent around the berths of the train. Appreciating her creativity proud daddy shared this sweet video.
Workout motivation
Akshay is known for his strength and physique and intense workout schedules, but he is also training his girl to push a little today for a better tomorrow. Recently he shared an amazing video of Nitara working out. "It’s always a good idea to start young, their bodies are agile and flexible...a little push now will go a long way later", he captioned the video.
Kite flying tradition
This year on Makar Sankranti Akshay had shared a cute video of Nitara helping him to fly a kite. in the video, we can the little girl holding 'manjha' and helping her dad but later she asks Akshay to allow her to fly the kite. "Meet daddy’s little helper 😁 Continuing our yearly father-daughter ritual of flying kites soaring high in the sky!", the actor mentioned.
Great parenting tips
The Khiladi Kumar had shared a video of Nitara doing the battle rope exercise and we were in awe of it. Her back was to the camera as she repeatedly shook the ropes with her hands. While sharing the clip, Akshay wrote a nice parenting tip which read, "Kids tend to pick up what they see...start early and try to set a good example.
Great parenting. Active kids. "
Shaving time
On Nitara's 5th birthday Akshay wished his her by sharing this priceless video. In the video, Nitara is seen applying some shaving cream to her daddy and he was also enjoying the precious moment.


10. The Ten Plagues
Moses and Aaron went to Pharaoh. They said, "This is what the God of Israel says, 'Let my people go!'" Pharaoh did not listen to them. Instead of letting the Israelites go free, he forced them to work even harder!
Pharaoh kept refusing to let the people go, so God sent ten terrible plagues on Egypt. Through these plagues, God showed Pharaoh that he is more powerful than Pharaoh and all of Egypt's gods.
God turned the Nile River into blood, but Pharaoh still would not let the Israelites go.
God sent frogs all over Egypt. Pharaoh begged Moses to take away the frogs. But after all the frogs died, Pharaoh hardened his heart and would not let the Israelites leave Egypt.
So God sent a plague of gnats. Then he sent a plague of flies. Pharaoh called Moses and Aaron and told them that if they stopped the plague, the Israelites could leave Egypt. When Moses prayed, God removed all the flies from Egypt. But Pharaoh hardened his heart and would not let the people go free.
 But Pharaoh's heart was hardened, and he would not let the Israelites go.
 When he did, painful skin sores appeared on the Egyptians, but not on the Israelites. God hardened Pharaoh's heart, and Pharaoh would not let the Israelites go free.
After that, God sent hail that destroyed most of the crops in Egypt and killed anybody who went outside. Pharaoh called Moses and Aaron and told them, "I have sinned. You may go." So Moses prayed, and the hail stopped falling from the sky.
But Pharaoh sinned again and hardened his heart. He would not let the Israelites go free.
So God caused swarms of locusts to come over Egypt. These locusts ate all the crops that the hail had not destroyed.
Then God sent darkness that lasted for three days. It was so dark that the Egyptians could not leave their houses. But there was light where the Israelites lived.
Even after these nine plagues, Pharaoh still refused to let the Israelites go free. Since Pharaoh would not listen, God planned to send one last plague. This would change Pharaoh's mind.
A Bible story from: Exodus 5-10


KvK krachtmeting, an online quiz to test the skills of a starting entrepeneur
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B2B order application
On Behalf of Valtech.


Scala
Q1. Scala bytecode can run on top of Java VM. What is the fundamental difference between Java object.clone() and Scala object.copy()?
- [ ] One is a Java object, the other is a Scala object.
- [ ] clone() will copy class structures but not the data, while copy() will also copy data into new objects.
- [ ] There is no difference.
- [x] copy() allows you to change values during the copying process; clone() does not.
Q2. What value does this code return?
val m1 = Map("a"->1,"b"->2,"c"->3)
m1("a")
Q3. What is one way to avoid low-level parallelization details?
- [ ] monads
- [ ] literal functions
- [ ] partially applied functions
- [x] parallel collections
Q4. What do you use in ScalaTest to see a detailed diagram of error messages when a test fails?
- [ ] ArgumentExceptions
- [ ] AssertionException
- [x] DiagrammedAssertions
- [ ] JUnit
Q5. What data type would you use to store an immutable collection of objects that contain a fixed number of varying types?
- [ ] Array
- [ ] ImmutableCollection
- [ ] List
- [x] Tuple
Q6. After defining a function in the interpreter, Scala returns the following. What does the
myfnc: ()Unit
- [ ] The function has no side effects.
- [ ] The function takes no parameters.
- [x] The function returns no value.
- [ ] Returning unit types to the function is a closures.
Q7. What type of number is 1234.e5?
- [ ] hexadecimal
- [ ] short
- [x] floating point
- [ ] long
Q8. When you convert a map to a list using the toList method of the map, the result will be of which type?
- [ ]
List[(String, String)]
- [ ]
List[(Array, Array)]
- [ ]
List[(Array, Array)]
- [x]
List
Q9. What type of object does this code create?
val x = (1234, "Active")
- [ ] List
- [ ] Map
- [x] Tuple
- [ ] Array
Q10. Which is a subclass of all classes?
- [ ] AnyVal
- [ ] AnyRef
- [ ] Method
- [x] Null NOT SURE
Q11. For the for-yield construct, is the scope separate between for-body and yield-body?
- [x] Yes and no. It is different depending on the for construct and what it does. NOT SURE
- [ ] Yes, because the for section does not expose its scope.
- [ ] No, because for-yield shares the same scope, even though they are within separate curly braces.
- [ ] Yes, because they are within different curly braces.
Q12. What is one way to implement pattern matching on methods?
- [ ] using regex
- [ ] using monads
- [x] using string matching
- [ ] using case classes
Q13. What is the value of z after executing this code?
val y = List('a','b')
val z = y::List('c')
- [ ] List(a,b,c)
- [x] List(List(a, b), c)
- [ ] List(c,a,b)
- [ ] List(c,List(a,b))
Q14. What term is used to specify a precondition?
- [x] assert
- [ ] require
- [ ] precondition
- [ ] mustHave
Q15. Which Scala type may throw an exception or a successfully computed value, and is commonly used to trap and propagate errors?
answers missing
Answer should be Option: Some or None
Q16. What is the data type of y after this code is executed?
val y = (math floor 3.1415 * 2)
- [ ] short
- [x] double
- [ ] int
- [ ] bigInt
Q17. When using pattern matching, which character matches on any object?
Q18. You have created an array using val. Can you change the value of any element of the array—and why or why not?
- [ ] Yes, the reference to the array is immutable, so the location that the array points to is immutable. The values in the array are mutable.
- [ ] The 0th element is immutable and cannot be modified. All other elements can be modified.
- [x] Yes, val does not make arrays immutable.
- [ ] No, val makes the array and values of the array immutable.
Q19. What is the output of this function?
def main () {
var a = 0
for (a<-1 until 5){println(a)}
- [ ] 1,2,3,4,5
- [ ] 0,1,2,3,4
- [x] 1,2,3,4
- [ ] 2,3,4,5
Q20. What do you call objects with immutable state?
- [x] singletons
- [ ] stationary objects
- [ ] functional objects
- [ ] fixed objects
Q21. You have written a Scala script. How would you access command-line arguments in the script?
- [x] use array named args
- [ ] use tuple named args
- [ ] use numbered variables with a _ prefix for example _ 1, _ 2, _ 3
- [ ] use numbered variables with a $ prefix - for example $1, $2, $3
Q22. What does this code return? val x = 3; if (x >2) x = 4 else x = x*2
- [ ] 4
- [x] an error
- [ ] 6
- [ ] 3
Q23. Which statement returns a success or a failure indicator when you execute this code?
val MyFuture = Future {runBackgroundFunction() }
- [✅] myFuture.onComplete - [ ] myFuture(status) - [ ] myFuture.Finished - [ ] complete(myFuture)
Q24. To denote a parameter that may be repeated, what should you place after type?
Q25. What is called when a superclass has more than one subclass in Scala?
- [ ] polyinheritance
- [ ] multilevel inheritance
- [ ] multimode inheritance
- [x] hierarchical inheritance


async.base_engine module¶
-
class
pyrlang.async_support.base_engine.
BaseEngine
¶ Bases:
object
This is base class for Pluggable Async Engines. This class abstracts away aspects handled by asyncio, gevent and similar event engines allowing different library to be selected.
-
call_later
(t: float, fn)¶ Schedules fn to be called after sleep(t).
-
connect_with
(protocol_class: typing.Type[pyrlang.async_support.base_protocol.BaseProtocol], host_port: tuple, protocol_args: list, protocol_kwargs: dict)¶ Connects to host_port with a given BaseProtocol handler.
-
destroy
()¶
-
listen_with
(protocol_class: typing.Type[pyrlang.async_support.base_protocol.BaseProtocol], protocol_args: list, protocol_kwargs: dict)¶ Spawns a task which would listen on a random port with a given BaseProtocol handler
-
queue_new
() → pyrlang.async_support.base_engine.BaseQueue¶ Creates a new Queue object compatible with the current async engine.
-
run_forever
()¶ Continues running event loop forever.
-
sleep
(seconds: float)¶ Sleeps given amount of seconds in a nice compatible way.
-
socket_module
()¶ Returns current socket module (modified to be compatible with the current async library). Used functions are: * socket.create_connection * socket.error (Exception class) * socket.gethostbyname
-
spawn
(a_callable)¶ Spawns a task which will call loop_fn repeatedly while it returns False, else will stop.
-


Trivia!
Try your hand at these general knowledge questions below!
Score:
out of
PLAY!
The answer is:
True
False
The answer is:
True
False
The answer is:
True
False
The answer is:
True
False
The answer is:
True
False
The answer is:
True
False
The answer is:
True
False
The answer is:
True
False
The answer is:
True
False


RT @overgroove: OAuth! It's as easy as 1, 2, 3! 4a, 4b, 5, 6, 7, if 8 is not true go back to 2, skip ahead to 9 iii Section II Addendum 10,…
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RT @overgroove: OAuth! It's as easy as 1, 2, 3! 4a, 4b, 5, 6, 7, if 8 is not true go back to 2, skip ahead to 9 iii Section II Addendum 10,…
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link


public interface PostResponse
PostResponse
interface defines the API of a response
container which can (and should) be used by PostOperation
services to
prepare responses to be sent back to the client.
This bundle provides a preconfigured HtmlResponse
and a
JSONResponse
implementation of this interface. Clients may extend the
AbstractPostResponse
class to provide their own response
implementations.
| Modifier and Type | Method and Description |
|---|---|
Throwable |
getError()
Returns any recorded error or
null |
String |
getLocation()
Returns the location of the modification.
|
String |
getParentLocation()
Returns the parent location of the modification.
|
String |
getPath()
Returns the absolute path of the item upon which the request operated.
|
String |
getReferer()
Returns the referer previously set by
setReferer(String) |
int |
getStatusCode()
Returns the status code of this instance.
|
String |
getStatusMessage()
Returns the status message or
null if no has been set with
the setStatus(int, String) method. |
boolean |
isCreateRequest()
Returns
true if this was a create request. |
boolean |
isSuccessful()
|
void |
onChange(String type,
String... arguments)
Records a generic change of the given
type with arguments. |
void |
onCopied(String srcPath,
String dstPath)
Records a 'copied' change.
|
void |
onCreated(String path)
Records a 'created' change
|
void |
onDeleted(String path)
Records a 'deleted' change
|
void |
onModified(String path)
Records a 'modified' change
|
void |
onMoved(String srcPath,
String dstPath)
Records a 'moved' change.
|
void |
send(javax.servlet.http.HttpServletResponse response,
boolean setStatus)
Writes the response back over the provided HTTP channel.
|
void |
setCreateRequest(boolean isCreateRequest)
Sets whether the request was a create request or not.
|
void |
setError(Throwable error)
Sets the recorded error causing the operation to fail.
|
void |
setLocation(String location)
Sets the location of this modification.
|
void |
setParentLocation(String parentLocation)
Sets the parent location of the modification.
|
void |
setPath(String path)
Sets the absolute path of the item upon which the request operated.
|
void |
setReferer(String referer)
Sets the referer property
|
void |
setStatus(int code,
String message)
Sets the response status code properties
|
void |
setTitle(String title)
Sets the title of the response message
|
void setReferer(String referer)
String getReferer()
setReferer(String)
void setPath(String path)
String getPath()
If the setPath(String)
method has not been called yet, this
method returns null
.
void setCreateRequest(boolean isCreateRequest)
boolean isCreateRequest()
true
if this was a create request.
Before calling the setCreateRequest(boolean)
method, this method
always returns false
.
void setLocation(String location)
current path
.location
- String getLocation()
If the setLocation(String)
method has not been called yet, this
method returns null
.
void setParentLocation(String parentLocation)
current path
.String getParentLocation()
If the setParentLocation(String)
method has not been called yet,
this method returns null
.
void setTitle(String title)
title
- the titlevoid setStatus(int code, String message)
code
- the codemessage
- the messageint getStatusCode()
setStatus(int, String)
method, the
status code is determined by checking if there was an error. If there was
an error, the response is assumed to be unsuccessful and 500 is returned.
If there is no error, the response is assumed to be successful and 200 is
returned.String getStatusMessage()
null
if no has been set with
the setStatus(int, String)
method.void setError(Throwable error)
Throwable getError()
null
null
boolean isSuccessful()
void onCreated(String path)
path
- path of the item that was createdvoid onModified(String path)
path
- path of the item that was modifiedvoid onDeleted(String path)
path
- path of the item that was deletedvoid onMoved(String srcPath, String dstPath)
srcPath
- source path of the node that was moveddstPath
- destination path of the node that was moved.void onCopied(String srcPath, String dstPath)
srcPath
- source path of the node that was copieddstPath
- destination path of the node that was copied.void onChange(String type, String... arguments)
type
with arguments.type
- The type of the modificationarguments
- The arguments to the modificationsvoid send(javax.servlet.http.HttpServletResponse response, boolean setStatus) throws IOException
response
- to send tosetStatus
- whether to set the status code on the responseIOException
- if an i/o exception occursCopyright © 2014 The Apache Software Foundation. All rights reserved.


call p%free(p,info)
This method deallocates the preconditioner data structure p
.
Arguments
info |
integer, intent(out) . |
| Error code. If no error, 0 is returned. See Section 8 for details. |
For compatibility with the previous versions of MLD2P4, this method can be also invoked as follows:
call mld_precfree(p,info)


My first hack with the board - Part 2
The code for my traffic light system
June 30, 2014
-
4 minute read
-
Holla people, code for the arduino (traffic light system) project is below. I am in a hurry today. I might tell you how it all works in my next post.


These functions calculate the sample size needed to estimate a measure with a certain precision. For ratio measures, like the risk ratio, rate ratio, and odds ratio, this is the ratio of the upper to lower limit of the confidence interval. For difference measures, like the risk difference or rate difference, this is the absolute width of the confidence interval.
n_risk_difference(precision, exposed, unexposed, group_ratio, ci = 0.95) n_risk_ratio(precision, exposed, unexposed, group_ratio, ci = 0.95) n_rate_difference(precision, exposed, unexposed, group_ratio, ci = 0.95) n_rate_ratio(precision, exposed, unexposed, group_ratio, ci = 0.95) n_odds_ratio( precision, exposed_cases, exposed_controls, group_ratio, ci = 0.95 )
| precision | For differences, the width of the CI. For ratios, the ratio of the upper to lower CI. |
|---|---|
| exposed | The risk or rate among the exposed cohort. |
| unexposed | The risk or rate among the unexposed cohort. |
| group_ratio | In cohort studies, the ratio of the unexposed to the exposed. In case-control studies, the ratio of the controls to the cases. |
| ci | The confidence interval as a probability or percent. Default is .95. |
| exposed_cases | The proportion of exposed cases. |
| exposed_controls | The proportion of exposed controls. |
a tibble with sample size, effect measure, and precision
Rothman, K.J. and Greenland, S. 2018. Planning Study Size Based on Precision Rather Than Power. 29(5):599-603.


Money Play. How should Red play 63?
pips Red=127 White=116
(CorrectAnswer= 0/0, ErrorScore= 0)
This one is a slight puzzle to me.
I played 14/8, 9/6 and had had it flagged as a blunder by XG. It rates 14/5 as far superior.
14/5 reduces the number of shots from 4 to 3 and does give return shots after White hits with 35. In addition, 14/8, 9/6 means that Red owns both his 2-pt and 8-pt and they can’t both be part of the same prime. Finally Red’s 1’s and 3’s (which don’t play well on White’s side of the board) may play better after 14/5 but that’s a little tenuous.
Are those differences enough to warrant a 0.114 equity difference on the rollout? Apparently so, but I’m still surprised.
I played 14/8, 9/6 and had had it flagged as a blunder by XG. It rates 14/5 as far superior.
14/5 reduces the number of shots from 4 to 3 and does give return shots after White hits with 35. In addition, 14/8, 9/6 means that Red owns both his 2-pt and 8-pt and they can’t both be part of the same prime. Finally Red’s 1’s and 3’s (which don’t play well on White’s side of the board) may play better after 14/5 but that’s a little tenuous.
Are those differences enough to warrant a 0.114 equity difference on the rollout? Apparently so, but I’m still surprised.
1. Cubeful 2-ply 14/5 Eq.: +0.414 0.599 0.158 0.004 - 0.401 0.063 0.001 2. Cubeful 2-ply 14/8 9/6 Eq.: +0.346 (-0.068) 0.582 0.149 0.003 - 0.418 0.060 0.001 3. Cubeful 2-ply 14/8 7/4 Eq.: +0.342 (-0.071) 0.570 0.161 0.004 - 0.430 0.091 0.002 4. Cubeful 2-ply 20/14 8/5 Eq.: +0.220 (-0.193) 0.569 0.123 0.003 - 0.431 0.110 0.002 5. Cubeful 0-ply 14/11 8/2 Eq.: +0.125 (-0.288) 0.529 0.114 0.003 - 0.471 0.070 0.001


Welcome to the 2017 edition of RUCS. We are now well into our review and editing stage! Please check your e-mail soon for results and follow-up!
As always if you have any questions, feel free to e-mail us at<EMAIL_ADDRESS>Sincerely,
the RUCS 2017 Team


Allow a client to display features that are available for a particular target entity - ad, user, etc - and apply a set of those features to a particular target
Feature resources can be divided into those that return data allowing the client to display available features to the user, and those that apply a feature to a particular target
GET /features
Returns the list of targets available.
Use this resource to build the child resource URL (/features/{target} described below) that will return the list of features available for the particular target type.
Each features-target element in the list specifies, via attributes, whether the category id and/or location id must be supplied for the /features/{target} child resource
200 OK
GET /features/{target}?[categoryId={catId}&locationId={locId}]
Returns the set of features available for the target type, grouped by feature group.
categoryId param - presence is determined by the value of the category-id attribute on the features:feature-target element acquired from the parent /features resource
locationId param - presence is determined by the value of the location-id attribute on the features:feature-target element acquired from the parent /features resource
200 OK
400 categoryId or locationId is missing when it is required
POST /features/{target}/{id}
Apply the set of features to the particular target specified by the {id}
Any payment is handled entirely by the client, but the request includes the payment transaction details created during the payment step to allow for a payment record to be created in the system.
200 OK
404 No such target and id combination
400 target entity not active
400 target feature mismatch
Note: The request is atomic - all features in the features-booked list will be applied or, if one or more fails, none will be applied
Include the list of currently active features in the ad representation. The list is encapsulated in the features-active element which is part of the features namespace. Each active feature includes its start and end date, it's duration and the price paid for the feature.


Ploror688.github.io
Fathers of the Church. Please help support the mission of New Advent and get the full contents of this website as an instant download. Includes the Catholic.
Muhammad and the Believers: At the Origins of Islam. In "Muhammad and the Believers: At the Origins of Islam" (2010), Fred Donner advances a sweeping thesis – namely, that Muhammad and the early Muslims Graduate Students Department of Arabic and Islamic. Christ myth theory - Wikipedia. “Adam Lost Original Justice by Sinning Gravely. Original. The Dominion Mandate and the Christian Reconstruction Movement by Bob DeWaay . A recent theological movement known as Christian Reconstruction Did A Historical Jesus Exist? - NoBeliefs.com. Hey fiends, Check back here daily when we hit the road for the official Creature Feature tour blog. We’ll be posting updates from our shows, lives photos INTERNATIONAL THEOLOGICAL COMMISSION. THESES IN CHRISTIAN ETHICS . NINE THESES IN CHRISTIAN ETHICS by Hans Urs von Balthasar. This document was approved
Apocrypha. Please help support the mission of New Advent and get the full contents of this website as an instant download. Includes the Catholic Encyclopedia, Church. Check Back Here When We Hit The Road! The Official. African-American literature is the body of literature produced in the United States by writers of African descent. It begins with the works of such late 18th-century. EPISTLE LXVI. me to breed certain men of this stamp with the idea of proving that virtue springs into birth in any place whatever. Had it been possible DILYARA AGISHEVA. Ottoman Islamic legal history MA (2012), Islamic Law and Middle Eastern History, Columbia University BA (2008), Middle Eastern Studies and Political. EPISTLE I. life speeds by. Nothing, Lucilius, is ours, except time. We were entrusted by nature with the ownership of this single thing, so fleeting and slippery. CATHOLIC ENCYCLOPEDIA: Fathers of the Church.
Headship (kephalē) and Submission (hupotassomai). PAUL'S MEANING IN ROMANS 7:14-25 Submitted as Partial Requirement for the Degree of Master of Theology June 30, 1990 Michael E. Brooks. African-American literature - Wikipedia.
This bibliography includes primary source texts relevant to the literary, historical, cultural, and religious milieu of Lollardy as well as those specifically Critical Issues Commentary: The Dominion Mandate THESES IN CHRISTIAN ETHICS - Vatican.va. Did a historical Jesus exist? by Jim Walker. originated: 12 June 1997 / additions: CATHOLIC ENCYCLOPEDIA: Apocrypha - NEW ADVENT. Seneca Epistles Book 1 - Stoics. This technical paper traces the relationships between word meanings of key concepts in Ephesians and Colossians -- headship and submission, kephale and hupotassomai. Seneca Epistles Book 2 - Stoics Paul's Meaning in Romans 7:14-25 - DatamanOS2.com.
From Topic to Thesis: A Guide to Theological Research. The Christ myth theory (also known as the Jesus myth theory, Jesus mythicism, or Jesus ahistoricity theory) is "the view that the person known as Jesus of Nazareth. From Topic to Thesis: A Guide to Theological Research Michael Kibbe on Amazon.com. FREE shipping on qualifying offers. While courses in Bible and theology. There are two principal parts to the present thesis: the fact of Adam's sin, and the existence of original sin, derived from Adam by natural propagation.


We are pleased to invite you to participate in our focus group!
We are testing out products for our new catalog and we need your help! Please follow the instructions below.
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[gecode-users] Windows Vista Ultimate and Visual C++ 2008 problem
Christian Schulte
cschulte at kth.se
Mon Aug 25 10:08:49 CEST 2008
Hi,
as is visible in the log, the configure script stills finds gcc and not cl
(the Microsoft compiler). Please read the compilation instructions and make
sure that all pathes etc are set up for cl (this issue has been discussed on
this mailing list before).
Cheers
Christian
--
Christian Schulte, www.ict.kth.se/~cschulte/
From: users-bounces at gecode.org [mailto:users-bounces at gecode.org] On Behalf
Of Jorge Ivory Castaño
Sent: Monday, August 25, 2008 12:22 AM
To: users at gecode.org
Subject: [gecode-users] Windows Vista Ultimate and Visual C++ 2008 problem
Hi it's me again. And still can't make this work.
As gcc compilation is not suported for GecodeJ under Windows, i tried
deleting the gecode and gecodej folder to reinstall, but now I have another
problem
I used Visual Studio 2008 command prompt and now i get this error as you can
see:
http://www.eldesparchecali.com/images/Dibujo8.jpg
I use Visual C++ 2008 express edition, Windows Vista Ultimate on a AMD's
Athlon 64 X2 5000+ Black Edition
Using gcc didn't show an error on this step
http://www.eldesparchecali.com/images/Dibujo.jpg
What's happening? Should I try linux instead? What can i do?
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Game Invitation Received! (from
)
Go!
|
Nope
Waiting List
My Map
Mypage
Username:
NONE
Statistic:
Win =
NONE
| Lose =
NONE


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Checks various conditions on a specific mouse button. Non static methods implicitly make sure that the game is active. Otherwise returns false.
Returns true when the button was not pressed and is now pressed.
Returns true when the button is now pressed.
Returns true when the button was pressed and is now pressed.
Returns true when the button was pressed and is now not pressed.
| public static bool Pressed( |
| ) |
Returns true when the button was not pressed and is now pressed.
| public static bool Held( |
| ) |
Returns true when the button is now pressed.
| public static bool HeldOnly( |
| ) |
Returns true when the button was pressed and is now pressed.
| public static bool Released( |
| ) |
Returns true when the button was pressed and is now not pressed.
| public static bool IsMouseValid( |
| ) |
Returns true when the mouse is within the game window.


Tensorflow.js Regression
Select the type of Regression function:
Linear
Binomial
Trinomial
type of Learning:
SGD
ADAM
Go
Tap or Hold on the Canvas to draw...


[1]
another issue after the property is the price.
[2]
another issue after the road noise is the price.


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This script will be run prior to sending the email to allow
modifying the email before sending. The MimeMessage variable
is msg, the build is also available as build and a logger
is available as logger.
You may also cancel sending the email by setting the boolean
variable cancel to true.


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| Description | A powerful serverless platform with an intuitive git-based workflow. Automated deployments, shareable previews, and much more. Get started for free! |
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|---|---|
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| IPv4 address | <IP_ADDRESS> (VirusTotal) |
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| IPv6 autonomous systems | AS14061 |
| Reverse DNS | unknown |
| Domain | netlify.app |
|---|---|
| Nameserver | dns1.p01.nsone.net |
| Domain registrar | nic.google |
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| Organisation | Netlify, Redacted For Privacy, Redacted For Privacy, REDACTED FOR PRIVACY, United States |
| DNS admin |<EMAIL_ADDRESS>|
| Top Level Domain | Application (.app) |
| DNS Security Extensions | unknown |
| Latest Performance | Performance Graph |
| IP range | Country | Name | Description |
|---|---|---|---|
| <IP_ADDRESS>-<IP_ADDRESS> | N/A | IANA-BLK | The whole IPv4 address space |
| ↳ <IP_ADDRESS>-<IP_ADDRESS> | United States | NET142 | Various Registries (Maintained by ARIN) |
| ↳ <IP_ADDRESS>-<IP_ADDRESS> | United States | DIGITALOCEAN-142-93-0-0 | DigitalOcean, LLC |
| ↳ <IP_ADDRESS> | United States | DIGITALOCEAN-142-93-0-0 | DigitalOcean, LLC |
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| ::/0 | N/A | ROOT | Root inet6num object |
| ↳ 2a00::/11 | European Union | EU-ZZ-2A00 | RIPE NCC |
| ↳ 2a00::/12 | Netherlands | EU-ZZ-2A00 | RIPE Network Coordination Centre |
| ↳ 2a03:b0c0::/32 | Netherlands | US-DIGITALOCEANLLC-20121228 | DigitalOcean, LLC |
| ↳ 2a03:b0c0:3::/48 | Germany | DIGITALOCEAN | |
| ↳ 2a03:b0c0:3:e0:0:0:27e:2001 | Germany | DIGITALOCEAN |
We use multilateration to independently determine the location of a server. Read more.
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This is not a HTTPS site. If you're looking for SSL/TLS information try the HTTPS site report.
A host's Sender Policy Framework (SPF) describes who can send mail on its behalf. This is done by publishing an SPF record containing a series of rules. Each rule consists of a qualifier followed by a specification of which domains to apply this qualifier to. For more information please see open-spf.org.
| Qualifier | Mechanism | Argument |
|---|---|---|
| - (Fail) | all |
DMARC (Domain-based Message Authentication, Reporting and Conformance) is a mechanism for domain owners to indicate how mail purporting to originate from their domain should be authenticated. It builds on SPF and DKIM, providing a method to set policy and to give reporting of failures. For more information please see dmarc.org.
Raw DMARC record:
v=DMARC1; p=none; sp=none<EMAIL_ADDRESS><EMAIL_ADDRESS><EMAIL_ADDRESS>fo=1
| Tag | Field | Value |
|---|---|---|
| p=none | Requested handling policy | None: no specific action to be taken regarding delivery of messages. |
| sp=none | Requested handling policy for subdomains | None: no specific action to be taken regarding delivery of messages. |
|<EMAIL_ADDRESS><EMAIL_ADDRESS>| Reporting URI(s) for aggregate data |<EMAIL_ADDRESS>Invalid<EMAIL_ADDRESS>|
|<EMAIL_ADDRESS>| Reporting URI(s) for failure data |<EMAIL_ADDRESS>|
| fo=1 | Failure reporting options | Generate a DMARC failure report if any underlying authentication mechanism failed to produce an aligned "pass" result. |
Web Trackers are third-party resources loaded onto a webpage. Trackable resources include social sharing widgets, javascript files, and images. These trackers can be used to monitor individual user behaviour across the web. Data derived from these trackers are primarily used for advertising or analytics purposes.
1 known tracker was identified.Companies
- Google (1)
Categories
- Analytics (1)
| Company | Primary Category | Tracker | Popular Sites with this Tracker |
|---|---|---|---|
| Analytics | Googletagmanager | www.coingecko.com, www.etsy.com, www.roblox.com |
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Cloud computing is the use of computing resources (hardware and software) that are delivered as a service over a network (typically the Internet). Platform as a service (PaaS) is a category of cloud computing services that provide a computing platform and a solution stack as a service.
Technology Description Popular sites using this technology Amazon Web Services - EC2 Cloud computing service (Elastic Compute Cloud) www.netflix.com, www.duolingo.com, addons.mozilla.org -
Includes all the main technologies that Netcraft detects as running on the server such as PHP.
Technology Description Popular sites using this technology XML No description www.dailymail.co.uk, www.virustotal.com, www.ecosia.org -
Includes all the main technologies that run on the browser (such as JavaScript and Adobe Flash).
Technology Description Popular sites using this technology Local Storage No description www.coingecko.com, www.ebay.co.uk, teams.microsoft.com JavaScript Widely-supported programming language commonly used to power client-side dynamic content on websites outlook.live.com, en.wikipedia.org -
Frameworks or libraries allow for easier development of applications by providing an Application Program Interface (API) or a methodology to follow whilst developing.
Technology Description Popular sites using this technology Google Tag Manager No description www.etsy.com, www.20minutes.fr, www.digikala.com -
A content management system (CMS) is a computer program that allows publishing, editing and modifying content as well as maintenance from a central interface.
Technology Description Popular sites using this technology Hugo CMS No description www.parrotsec.org, www.freebsd.org, parrotsec.org Drupal An open source content management system www.amd.com, www.netacad.com, www.independent.co.uk -
PHP is an open source server-side scripting language designed for Web development to produce dynamic Web pages.
Technology Description Popular sites using this technology Drupal An open source content management system www.windowscentral.com, access.redhat.com, meteofrance.com -
A web search engine is a software that is designed to search for information on the World Wide Web or on a specific site.
Technology Description Popular sites using this technology Custom Search Engine Google Custom Search Engine www.twitch.tv, www.hulu.com, www.pinterest.com -
Web analytics is the measurement, collection, analysis and reporting of internet data for purposes of understanding and optimizing web usage.
Technology Description Popular sites using this technology Google Webmaster Tools Set of tools allowing webmasters to check indexing status and optimize visibility of their websites on Google zoom.us, t.co, us02web.zoom.us -
A character encoding system consists of a code that pairs each character from a given repertoire with something else such as a bit pattern, sequence of natural numbers, octets, or electrical pulses in order to facilitate the transmission of data (generally numbers or text) through telecommunication networks or for data storage.
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HTTP compression is a capability that can be built into web servers and web clients to make better use of available bandwidth, and provide greater transmission speeds between both.
Technology Description Popular sites using this technology Gzip Content Encoding Gzip HTTP Compression protocol www.instructables.com, www.seznam.cz, www.varzesh3.com -
Web browser targeting enables software applications to make use of specific functions of the browser as well as optimizing the application for specific browser versions.
Technology Description Popular sites using this technology Strict Transport Security Web security policy mechanism whereby a web server declares that complying user agents are to interact with it using only secure HTTP connections www.linkedin.com, www.instagram.com, mail.google.com Strict-Transport-Security (including subdomains) No description www.amazon.co.uk, www.binance.com, my308053-sso.crm.ondemand.com X-Content-Type-Options Browser MIME type sniffing is disabled web.whatsapp.com, twitter.com, accounts.google.com Strict-Transport-Security (preload) No description www.amazon.in, www.qwant.com, www.amazon.it X-Frame-Options Same Origin Do not allow this site to be rendered within an iframe www.ebay.com, www.google.com, www.msn.com Referrer Policy Restrict referrer information included in subsequent requests www.xvideos.com, www.office.com, www.bbc.co.uk X-XSS-Protection Block Block pages on which cross-site scripting is detected www.paypal.com, login.live.com, discord.com -
A Document Type Declaration, or DOCTYPE, is an instruction that associates a particular SGML or XML document (for example, a webpage) with a Document Type Definition (DTD).
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HTML5 is a markup language for structuring and presenting content for the World Wide Web and a core technology of the Internet. It is the fifth revision of the HTML standard.
Technology Description Popular sites using this technology Viewport meta tag HTML5 tag usually used for mobile optimization


The methods defined here are available at the class scope level of a Scrapes::Page subclass. For example: class Foobar < Scrapes::Page rule :foo, 'foo' rule_1 :bar, 'bar', 'text()' end
—
=== Using <tt>rule</tt> === Using <tt>rule_1</tt> === Using <tt>selector</tt> === Using <tt>extractor</tt>
++
- CLASS Scrapes::RuleParser::Extractor
- CLASS Scrapes::RuleParser::InvalidRuleException
- CLASS Scrapes::RuleParser::Rule
Creates a standalone extractor that can later be used in a rule. Example:
class Foobar < Scrapes::Page extractor :mailto_extract do |elem| elem.attributes['href'].sub(/mailto:/,'') # remove the mailto: string end rule :emails, 'a[@href^="mailto:"]', :mailto_extract end
| name: | the name later used to invoke this selector |
| extract: | the extractor to use, String or NilClass |
| block: | a block extractor, must not be defined if extract is non-nil |
A block extractor is yielded each object that matched the rules’s selector.
Extractors passed to rule or rule_1 are interpreted based on the class of the extractor as follows
NilClass
The result of the selector is just re-returned. Thus foo.my_rule would just return the selector results defined on the :my_rule rule.
Symbol
An custom extractor is used. See above docs for this method for an example.
Class
A nested class of the given name is used as a new inner-parser. An instance of that class is returned from each invocation of the extractor. Example:
class Outer < Scrapes::Page class Inner < Scrapes::Page rule_1 :bold_text, 'b', 'text()' rule_1 :img_src, 'img[@src]', '@src' end rule :items, 'tr', Inner end
Now calling my_page.items returns an Array of Inner objects that each separately parses out the bold text and image source of each table row in the document.
String
Two patterns:
| @foobar: | extract out the contents of an attibute named ‘foobar’ |
| foobar(): | invoke the foobar builtin extractor, see Scrapes::Hpricot::Extractors |
Source: show
# File lib/scrapes/rule_parser.rb, line 150 def extractor(name, extract = nil, &block) tor '@extractor', name, extract, &block end
| name: | the name later used to invoke this rule |
| select: | the selector to use, String or Symbol |
| extract: | the extractor to use, String, Symbol, or Class. See RuleParser#extractor |
| limit: | the limit of nodes to send to extractor |
| block: | a block extractor, must not be defined if extract is non-nil |
Example:
class Foobar < Scrapes::Page rule :foo, 'foo' end
Later it’s used as an instance method on the Scrapes::Page objects like this:
foobar.foo.each do |foo| example.attr << foo end
Source: show
# File lib/scrapes/rule_parser.rb, line 66 def rule(name, select = '', extract = nil, limit = -1, &block) raise InvalidRuleException, "First argument (rule name) is required" unless name attr name, true self.rules << Rule.new(name, selector(nil,select), extractor(nil,extract,&block), limit) end
Almost the same as rule except forces limit to be 1. The other difference is that RuleParser#rule returns collections of matches (an Array or size 1 even) where as RuleParser#rule_1 just returns the match.
| name: | the name later used to invoke this rule |
| select: | the selector to use, String or Symbol |
| extract: | the extractor to use, String, Symbol, or Class |
| block: | a block extractor, must not be defined if extract is non-nil |
Example:
class Foobar < Scrapes::Page rule_1 :bar, 'tr' end
Later it’s used as an instance method on the Scrapes::Page objects like this:
example.attr = foobar.bar
Source: show
# File lib/scrapes/rule_parser.rb, line 86 def rule_1(name, selector = '', extractor = nil, &block) rule(name, selector, extractor, 1, &block) end
Creates a standalone selector that can later be used in a rule. Example:
class Foobar < Scrapes::Page selector :foo_select, 'table' rule_1 :bar, :foo_select # a Symbol triggers use of the selector end
| name: | the name later used to invoke this selector |
| select: | the selector to use, String or NilClass |
| block: | a block selector, must not be defined if select is non-nil |
A block selector is yielded the Hpricot doc object just once. The collection it returns is interated over and each match is passed to the extractor. Example:
class Foobar < Scrapes::Page selector :foo_select_2 do |hpricot_doc| doc.search('table') end rule_1 :bar, :foo_select_2 # a Symbol triggers use of the selector end
String selectors passed to rule or rule_1 are interpreted as Hpricot search strings. See code.whytheluckystiff.net/hpricot/wiki/AnHpricotShowcase
Source: show
# File lib/scrapes/rule_parser.rb, line 109 def selector(name, select = nil, &block) tor '@selector', name, select, &block end