Small and efficient database abstraction layer.
I looked everywhere for a data store with these features and couldn't find it:
SomeSQL was born to bring all this together. It's an extensible database abstraction layer first, then includes an in memory store to make immediate use easy.
1 minute minimal quick start:
SomeSQL('users') // "users" is our table name.
.model([ // Declare data model
{key:'id',type:'int',props:['pk','ai']},
{key:'name',type:'string'},
{key:'age',type:'int'},
])
.connect() // Init the data store for usage.
.then(function() {
return this.query('upsert',{ // Add a record
name:"Billy",
age:5
}).exec();
})
.then(function() {
return this.query('select').exec(); // select all rows from the current active table
})
.then(function(rows) {
console.log(rows) // <= [{id:1,name:"Billy",age:5}]
})
First you declare your models, connect the db, then you execute queries.
SomeSQL('users')// Table/Store Name, required to declare model and attach it to this store.
.model([ // Data Model, required
{key:'id',type:'int',props:['pk','ai']}, // This has the primary key and auto incriment values
{key:'name',type:'string'},
{key:'age',type:'int'},
{key:'balance',type:'float'},
{key:'postIDs',type:'array'},
{key:'meta',type:'map'}
])
.actions([ // Optional
{
name:'add_new_user',
args:['user:map'],
call:function(args) {
return this.query('upsert',args.user).exec();
}
}
])
.views([ // Optional
{
name: 'get_user_by_name',
args: ['name:string'],
call: function(args) {
return this.query('select').where(['name','=',args.name]).exec();
}
},
{
name: 'list_all_users',
args: ['page:int'],
call: function(args) {
return this.query('select',['id','name']).exec();
}
}
])
// Initializes the db.
SomeSQL().connect().then(function() {
// DB ready to use.
this.doAction('add_new_user',{user:{
id:null,
name:'jim',
age:30,
balance:25.02,
postIDs:[0,20,5],
meta:{
favorteColor:'blue'
}
}}).then(function(result) {
console.log(result) // <- "1 Row(s) upserted"
return this.getView('list_all_users');
}).then(function(result) {
console.log(result) // <- single object array containing the row we inserted.
});
});
You can execute a db command at any point from the SomeSQL
object after the DB is connected.
Every query follows the same pattern:
SomeSQL(#TABLE_NAME#).query(#ACTION#,#ARGS#)....optional filtering, sorting, etc...exec()
For example a query to get all rows from the users table looks like this:
SomeSQL('users').query('select').exec()
Here are some more examples:
// Get all records but only return the name and id columns
SomeSQL('users').query('select',['name','id']).exec();
// only show rows where the name == "scott"
SomeSQL('users').query('select').where(['name','=','scott']).exec()
// Compound where statement with AND
SomeSQL('users).query('select').where([['name','=','billy'],'and',['balance','>',20]]).exec();
// Compund where statement with OR
SomeSQL('users).query('select').where([['name','=','billy'],'or',['balance','>',20]]).exec();
// Order the results by name ascending, then age descending.
SomeSQL('users').query('select').orderBy({name:'asc',age:'desc'}).exec()
// Limit and Offset
SomeSQL('users').query('select').limit(20).offset(10).exec();
// Filters (Must be supported by the database driver)
SomeSQL('users').query('select',['age']).filter('average').exec();
// The Memory DB supports sum, first, last, min, max, average, and count
// combine any patterns as you'd like.
SomeSQL('users').query('select',['name']).where(['age','>',20]).orderBy({age:'desc'}).exec()
// Where statements work on upserts as well.
SomeSQL('users').query('upsert',{name:"Account Closed"}).where(['balance','<',0]).exec()
Possible query commands are select
, drop
, upsert
, and delete
.
All calls to the exec()
return a promise, with the result of the promise being the response from the database. The this
of the returned promise is always the current SomeSQL function with the last table you selected.
This makes it easy to chain commands:
SomeSQL('users').query('select').exec().then(function() {
return this.query('upsert',{name:"Bill"}).where(['name','=','billy']).exec();
}).then(function(result) {
return this.query('drop').exec();
})
You can listen to any number of database events on any table or all tables.
SomeSQL("users").on('select',function(eventData) {}) // Listen to "select" commands from the users table
SomeSQL("*").on('change',function(eventData) {}) // Listen for any changes to any table in the database.
Possible events are change
, delete
, upsert
, drop
, select
and error
.
You can create a new table by selecting it and creating a new data model:
SomeSQL('newTable').model([
{key:'name',type:'string'}
])
Keep in mind you MUST declare all your models and tables BEFORE calling the connect()
command.
If you need more than one data store with a collection of separate tables, you can declare a completely new SomeSQL db at any point.
var myDB = new SomeSQL_Instance().table;
// And now use it just like you use the SomeSQL var.
myDB('users').query("select").exec()...
Keep in mind that the tables and models are completely separate for each instance; there is no shared data, events or anything else.
Possible commands are split into three groups, one group is used before you connect to the database.
The other group is used after you connect to the database, and it's used to query the database data.
All commands can be chained or return a promise unless otherwise noted.
Events can be called before or after setup mode, at any time.
| Command | Definition | |
|---|---|---|
| .on() | Listen to specific database events with a callback function. | Examples |
| .off() | Remove a listening function from being triggered by events. | Examples |
| Command | Definition | |
|---|---|---|
| .model() | Declare database model, required. | Examples |
| .views() | Declare views to use. | Examples |
| .actions() | Declare actions to use. | Examples |
| .addFilter() | Add a filter that can be used on queries. | Examples |
| .connect() | Complete setup mode and optionally connect to a specific backend, required. | Examples |
Every database query looks like this:
SomeSQL(#Table Name#).query(#Query Type#, #Query Args#)...Optional Query Modifiers...exec()
This gives each query three distinct sections, the query section, the query modifier section, and the execute section.
There is only one possible function to start a query, and it has several different possible arguments. Check out the examples to see those.
| Command | Definition | |
|---|---|---|
| .query() | Starts a database query. | Examples |
Each modifier can take up to two arguments and normally can only be used once. Check each example for usage.
| Command | Definition | |
|---|---|---|
| .where() | Adds a search component to the current query. | Examples |
| .orderBy() | Adds a order by component to the current query. | Examples |
| .offset() | Offset the current query by a given value | Examples |
| .limit() | Limits the current query by a given value | Examples |
| .filter() | Applies a custom filter to the current query | Examples |
| .custom() | Use a custom query modifier provided by the database driver. | Examples |
These come at the end of a query to execute it on the database. All of these return a promise with the result, the promise also keeps the this
scope of the query, so you can chain additional commands afterwards.
| Command | Definition | |
|---|---|---|
| .exec() | Executes a pending query, returns a promise. | Examples |
| .toCSV() | Executes the pending query and returns a CSV of it, returns a promise. | Examples |
These can be used in replacement of the query..exec pattern to execute a given view or action.
| Command | Definition | |
|---|---|---|
| .getView() | Gets a specific view, returns a promise. | Examples |
| .doAction() | Does a specific action, returns a promise. | Examples |
Generated using TypeDoc


Cheshire3 Object Model: Class Workflow |
object --+ | configParser.C3Object --+ | Workflow
|
process(self,
session,
*args,
**kw)
Executes the code as constructed from the XML configuration on the given object. |
|
|
Inherited from Inherited from Inherited from |
| code | |
|
Inherited from Inherited from Inherited from |
|
code
|
| Generated by Epydoc 3.0alpha2 on Wed Aug 9 18:09:57 2006 | http://epydoc.sf.net |


delayed and it soon became obvious it would not fit the bill. So CEO Gil Amelio started shopping around for a modern OS to buy, and after a while, a consensus started to emerge on Jean-Louis Gassée’s BeOS. Gassée was the former Apple France executive who was supposed to replace Steve Jobs as the head of the Macintosh division in 1985. He had since left Apple and started his own company, Be Inc., whose software had everything Apple needed, including the good taste of running natively on Apple’s products.
However some NeXT employees called up Apple and told them about their own system, the very advanced NeXTSTEP, that had always been regarded as one of the best software platforms on the planet. Steve Jobs learned about it later and he was stunned. But in December 1996, he showed up at Apple for the first time in eleven years and not only convinced the board of using his technology, but also to buy his company. Apple agreed to pay more than $400 million for NeXT,


1.2.5 - Analytics
- IMPROVE: Analytics and Crash Reporting has been improved.
1.2.4 - Updated UI
- IMPROVE: Welcome text has been changed.
- NEW: You can now launch 9GAG directly from the app itself.
- NEW: You can now choose the format for images being saved.
- IMPROVE: Help dialog has been updated.
1.2.3 - Fix
- FIX: Title Text and Size reset problems solved.
1.2.2 - Feedback Dialog Update
- NEW: ACRA Error Reporting support has been added.
1.2.1 - Feedback Dialog Update
- IMPROVE: Feedback Dialog is now capable of building an email.
1.2.0 - Splash Screen Update
- Please Read: If you encounter performance issues or any other problems in application please report it by selecting Feedback button which is found at top right corner of the screen.
- NEW: Transparent splash screen added.
- NEW: Change Log added.
- NEW: Long Post support added.
- NEW: Feedback button added.
- IMPROVE: Saved gags in main menu is now sorted based on their saved date.
- IMPROVE: You can now undo deleted gags in Main Menu.
- IMPROVE: Code cleaned up.
- IMPROVE: Downloading and processing extensively improved.
- FIX: Lifecycle problem is solved.
- FIX: Downloaded images were appearing in native downloads app.
- FIX: Laggy Main Menu is fixed.
- KNOWN BUG: Custom Photo feature has been disabled until next update.
1.1.0 - Photo Page Update
- NEW: 9GAG Post can now be opened via long click at saved gags in Main Menu.
- NEW: Title size in Photo page can now be adjusted manually.
- IMPROVE: Displayed image in Photo page can now be zoomed.
1.0.1 - Photo Page Update
- IMPROVE: Minor bug fixes in Photo page
1.0.0 - First Release


Property Ownership or Lease
You are not required to commit to purchasing or leasing a property when submitting an application.
You must purchase or lease the property after receiving conditional approval. The licence will not be issued until the you provide evidence of the purchase or lease.


| dbSetDataMappings {DBI} | R Documentation |
This generic is deprecated since no working implementation was ever produced.
dbSetDataMappings(res, flds, ...)
res |
An object inheriting from DBIResult. |
flds |
a field description object as returned by |
... |
Other arguments passed on to methods. |
Sets one or more conversion functions to handle the translation of DBMS data types to R objects. This is only needed for non-primitive data, since all DBI drivers handle the common base types (integers, numeric, strings, etc.)
The details on conversion functions (e.g., arguments, whether they can invoke initializers and/or destructors) have not been specified.


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Impermanent communication - sharing fleeting thoughts and ideas - has become a popular way to connect with our friends. At the same time, we get a great deal of satisfaction from discovering new things. By combining these thoughts, Privy is a service that provides users with the opportunity to explore their surrounding area, uncover new ideas, and express themselves in an open, anonymous environment.


Actress Vicky Zugah To Marry On December 28?
by Peace FM OnlineGhanaian actress, Vicky Zugah has caused a stir on social media after she gave a hint about her supposed impending marriage.
A post sighted by zionfelix.net on Facebook and the actress’ WhatsApp status announced December 28 as a memorable date.
Details on the ‘Save the date’ photo were not enough to ascertain who she will get married to.
Venue for the ceremony was also unannounced, making many people question whether it is real or a promotional photo for a movie.
We cannot wait to see what this special day will offer in the life Vicky Zugah.
Zionfelix.net will not relent in giving updates about this story.
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The Four Million
by O. Henry
"Springtime Á La Carte"
Additional Information
- Year Published: 1906
- Language: English
- Country of Origin: United States of America
- Source: O. Henry, The Four Million (Doubleday, Page & Company; New York: 1906) Henry, O. (1906). The Four Million. Doubleday, Page & Company; New York.
-
Readability:
- Flesch–Kincaid Level: 5.2
- Word Count: 2,331
- Genre: Realism
- Keywords: fate, fiction, short story
- ✎ Cite This
Downloads
It was a day in March.
Never, never begin a story this way when you write one. No opening could possibly be worse. It is unimaginative, flat, dry and likely to consist of mere wind. But in this instance it is allowable. For the following paragraph, which should have inaugurated the narrative, is too wildly extravagant and preposterous to be flaunted in the face of the reader without preparation.
Sarah was crying over her bill of fare.
Think of a New York girl shedding tears on the menu card!
To account for this you will be allowed to guess that the lobsters were all out, or that she had sworn ice–cream off during Lent, or that she had ordered onions, or that she had just come from a Hackett matinee. And then, all these theories being wrong, you will please let the story proceed.
The gentleman who announced that the world was an oyster which he with his sword would open made a larger hit than he deserved. It is not difficult to open an oyster with a sword. But did you ever notice any one try to open the terrestrial bivalve with a typewriter? Like to wait for a dozen raw opened that way?
Sarah had managed to pry apart the shells with her unhandy weapon far enough to nibble a wee bit at the cold and clammy world within. She knew no more shorthand than if she had been a graduate in stenography just let slip upon the world by a business college. So, not being able to stenog, she could not enter that bright galaxy of office talent. She was a free–lance typewriter and canvassed for odd jobs of copying.
The most brilliant and crowning feat of Sarah's battle with the world was the deal she made with Schulenberg's Home Restaurant. The restaurant was next door to the old red brick in which she hall–roomed. One evening after dining at Schulenberg's 40–cent, five–course table d'hôte (served as fast as you throw the five baseballs at the coloured gentleman's head) Sarah took away with her the bill of fare. It was written in an almost unreadable script neither English nor German, and so arranged that if you were not careful you began with a toothpick and rice pudding and ended with soup and the day of the week.
The next day Sarah showed Schulenberg a neat card on which the menu was beautifully typewritten with the viands temptingly marshalled under their right and proper heads from "hors d'oeuvre" to "not responsible for overcoats and umbrellas."
Schulenberg became a naturalised citizen on the spot. Before Sarah left him she had him willingly committed to an agreement. She was to furnish typewritten bills of fare for the twenty–one tables in the restaurant—a new bill for each day's dinner, and new ones for breakfast and lunch as often as changes occurred in the food or as neatness required.
In return for this Schulenberg was to send three meals per diem to Sarah's hall room by a waiter—an obsequious one if possible—and furnish her each afternoon with a pencil draft of what Fate had in store for Schulenberg's customers on the morrow.
Mutual satisfaction resulted from the agreement. Schulenberg's patrons now knew what the food they ate was called even if its nature sometimes puzzled them. And Sarah had food during a cold, dull winter, which was the main thing with her.
And then the almanac lied, and said that spring had come. Spring comes when it comes. The frozen snows of January still lay like adamant in the crosstown streets. The hand–organs still played "In the Good Old Summertime," with their December vivacity and expression. Men began to make thirty–day notes to buy Easter dresses.  And when these things happen one may know that the city is still in the clutches of winter.
One afternoon Sarah shivered in her elegant hall bedroom; "house heated; scrupulously clean; conveniences; seen to be appreciated." She had no work to do except Schulenberg's menu cards. Sarah sat in her squeaky willow rocker, and looked out the window. The calendar on the wall kept crying to her: "Springtime is here, Sarah—springtime is here, I tell you. Look at me, Sarah, my figures show it. You've got a neat figure yourself, Sarah—a—nice springtime figure—why do you look out the window so sadly?"
Sarah's room was at the back of the house. Looking out the window she could see the windowless rear brick wall of the box factory on the next street. But the wall was clearest crystal; and Sarah was looking down a grassy lane shaded with cherry trees and elms and bordered with raspberry bushes and Cherokee roses.
Spring's real harbingers are too subtle for the eye and ear. Some must have the flowering crocus, the wood–starring dogwood, the voice of bluebird—even so gross a reminder as the farewell handshake of the retiring buckwheat and oyster before they can welcome the Lady in Green to their dull bosoms.
On the previous summer Sarah had gone into the country and loved a farmer.
(In writing your story never hark back thus. It is bad art, and cripples interest. Let it march, march.)
Sarah stayed two weeks at Sunnybrook Farm. There she learned to love old Farmer Franklin's son Walter. Farmers have been loved and wedded and turned out to grass in less time. But young Walter Franklin was a modern agriculturist. He had a telephone in his cow house, and he could figure up exactly what effect next year's Canada wheat crop would have on potatoes planted in the dark of the moon.
It was in this shaded and raspberried lane that Walter had wooed and won her. And together they had sat and woven a crown of dandelions for her hair. He had immoderately praised the effect of the yellow blossoms against her brown tresses; and she had left the chaplet there, and walked back to the house swinging her straw sailor in her hands.
They were to marry in the spring—at the very first signs of spring, Walter said. And Sarah came back to the city to pound her typewriter.
A knock at the door dispelled Sarah's visions of that happy day. A waiter had brought the rough pencil draft of the Home Restaurant's next day fare in old Schulenberg's angular hand.
Sarah sat down to her typewriter and slipped a card between the rollers. She was a nimble worker. Generally in an hour and a half the twenty–one menu cards were written and ready.
To–day there were more changes on the bill of fare than usual. The soups were lighter; pork was eliminated from the entrées, figuring only with Russian turnips among the roasts. The gracious spirit of spring pervaded the entire menu. Lamb, that lately capered on the greening hillsides, was becoming exploited with the sauce that commemorated its gambols. The song of the oyster, though not silenced, was dimuendo con amore. The frying–pan seemed to be held, inactive, behind the beneficent bars of the broiler. The pie list swelled; the richer puddings had vanished; the sausage, with his drapery wrapped about him, barely lingered in a pleasant thanatopsis with the buckwheats and the sweet but doomed maple.
Sarah's fingers danced like midgets above a summer stream. Down through the courses she worked, giving each item its position according to its length with an accurate eye. Just above the desserts came the list of vegetables. Carrots and peas, asparagus on toast, the perennial tomatoes and corn and succotash, lima beans, cabbage—and then—
Sarah was crying over her bill of fare. Tears from the depths of some divine despair rose in her heart and gathered to her eyes.
For she had received no letter from Walter in two weeks, and the next item on the bill of fare was dandelions—dandelions with some kind of egg—but bother the egg!—dandelions, with whose golden blooms Walter had crowned her his queen of love and future bride—dandelions, the harbingers of spring, her sorrow's crown of sorrow—reminder of her happiest days.
 Had Juliet so seen her love tokens dishonoured the sooner would she have sought the lethean herbs of the good apothecary.
But what a witch is Spring! Into the great cold city of stone and iron a message had to be sent. There was none to convey it but the little hardy courier of the fields with his rough green coat and modest air. He is a true soldier of fortune, this dent–de–lion—this lion's tooth, as the French chefs call him. Flowered, he will assist at love–making, wreathed in my lady's nut–brown hair; young and callow and unblossomed, he goes into the boiling pot and delivers the word of his sovereign mistress.
By and by Sarah forced back her tears. The cards must be written. But, still in a faint, golden glow from her dandeleonine dream, she fingered the typewriter keys absently for a little while, with her mind and heart in the meadow lane with her young farmer. But soon she came swiftly back to the rock–bound lanes of Manhattan, and the typewriter began to rattle and jump like a strike–breaker's motor car.
At 6 o'clock the waiter brought her dinner and carried away the typewritten bill of fare. When Sarah ate she set aside, with a sigh, the dish of dandelions with its crowning ovarious accompaniment.  Love may, as Shakespeare said, feed on itself: but Sarah could not bring herself to eat the dandelions that had graced, as ornaments, the first spiritual banquet of her heart's true affection.
At 7:30 the couple in the next room began to quarrel: the man in the room above sought for A on his flute; the gas went a little lower; three coal wagons started to unload—the only sound of which the phonograph is jealous; cats on the back fences slowly retreated toward Mukden. By these signs Sarah knew that it was time for her to read. She got out "The Cloister and the Hearth," the best non–selling book of the month, settled her feet on her trunk, and began to wander with Gerard.
The front door bell rang. The landlady answered it. Sarah left Gerard and Denys treed by a bear and listened. Oh, yes; you would, just as she did!
And then a strong voice was heard in the hall below, and Sarah jumped for her door, leaving the book on the floor and the first round easily the bear's. You have guessed it. She reached the top of the stairs just as her farmer came up, three at a jump, and reaped and garnered her, with nothing left for the gleaners.
 cried Sarah.
"New York is a pretty large town," said Walter Franklin. "I came in a week ago to your old address. I found that you went away on a Thursday. That consoled some; it eliminated the possible Friday bad luck. But it didn't prevent my hunting for you with police and otherwise ever since!
"I wrote!" said Sarah, vehemently.
"Never got it!"
"Then how did you find me?"
The young farmer smiled a springtime smile.
"I dropped into that Home Restaurant next door this evening," said he.  I ran my eye down that nice typewritten bill of fare looking for something in that line. When I got below cabbage I turned my chair over and hollered for the proprietor. He told me where you lived."
"I remember," sighed Sarah, happily. "That was dandelions below cabbage."
"I'd know that cranky capital W 'way above the line that your typewriter makes anywhere in the world," said Franklin.
"Why, there's no W in dandelions," said Sarah, in surprise.
The young man drew the bill of fare from his pocket, and pointed to a line.
Sarah recognised the first card she had typewritten that afternoon. There was still the rayed splotch in the upper right–hand corner where a tear had fallen. But over the spot where one should have read the name of the meadow plant, the clinging memory of their golden blossoms had allowed her fingers to strike strange keys.
Between the red cabbage and the stuffed green peppers was the item:
"DEAREST WALTER, WITH HARD–BOILED EGG."


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In election pledge, UK Labour promises free broadband for all
Labour said it would bring the parts of telecoms giant BT that deal with broadband into public ownership, as part of a sweeping programme of nationalisations.
Britain's main opposition Labour party on Friday promised free, fast broadband internet for everyone, in the most eye-catching of a series of big spending pledges ahead of next month's election.
Labour said it would bring the parts of telecoms giant BT that deal with broadband into public ownership, as part of a sweeping programme of nationalisations.
"The internet has become such a central part of our lives. It opens up opportunities for work, creativity, entertainment and friendship," said Labour leader Jeremy Corbyn.
"What was once a luxury is now an essential utility."
"That's why full-fibre broadband must be a public service, bringing communities together, with equal access, in an inclusive and connected society."
Conservative Prime Minister Boris Johnson has previously promised to deliver high-speed broadband to all households by 2025 via the private sector.
He condemned Labour's plan as "slightly fantastical" saying it would cost "many tens of billions" of taxpayers' money.
Lobby group TechUK said the move was "fundamentally misguided" and would spell "disaster" for the telecoms industry and the fast-growing digital sector.
"Renationalisation would immediately halt the investment being driven not just by BT but the growing number of new and innovative companies that compete with BT," said chief executive Julian David.
But Labour's finance chief, John McDonnell, accused BT of diverting billions of pounds of profits to shareholders since it was privatised in 1984, saying his plan would lead to long-term investment.
Very ambitious
Labour proposes to privatise BT's Openreach, which runs almost all of Britain's existing digital network, and other elements of the firm to create a new public entity, British Broadband.
But BT, whose shares fell 3.7 per cent on the news before rebounding, warned that Labour had underestimated the cost of its proposal of full, free coverage by 2030.
Labour foresees a one-off cost to establish the network of £20.3 billion (23.7 billion euros, $26.1 billion), part of a previously announced £250 billion fund.
The cost of privatising the relevant parts of BT would be set by parliament and paid for by swapping bonds for shares, Labour said.
Meanwhile, it said a new tax on global digital companies such as Amazon, Facebook and Google would "more than" cover annual maintenance costs of around £230 million.
But BT chief executive Philip Jansen said Labour's goal was "very, very ambitious", telling the BBC that building the network alone could cost £30 to 40 billion.
There would be further costs associated with staff pensions, while Openreach currently has a revenue of £5 billion a year, he said.
Johnson has already committed £5 billion to boost coverage and 5G networks in the hardest to reach areas.
Boosting productivity
The pledge is the most radical so far in the campaign for the December 12 election, which has been dominated by Britain's looming exit from the EU but also by promises to end a decade of austerity measures.
Labour wants to nationalise the water, railways and mail delivery companies, and invest hundreds of billions of pounds in infrastructure and public services.
Johnson's Conservatives, who were responsible for the belt-tightening measures since 2010, have also promised big investments but not on the same scale.
Improving broadband coverage and speeds has become a priority for both parties in a bid to improve productivity, particularly in rural areas.
Only eight per cent of UK premises are connected to full-fibre broadband, compared to 97 per cent in Japan and 98 per cent in South Korea, Labour says.
It claims that by allowing fast, the comprehensive network could boost productivity by £59 billion by 2025.


The search works in 2 phases, a tag phase and a filename phase.
- Comics consist of a number of tags.
- If a word in the search is a tag; it is added
- If a word in search is a word in the filename; it is added
Some comics are restricted and will not be shown unless specific search terms are used


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| your reservation has been submitted to us and we'll contact you as quickly as possible to complete your booking. If you have any question please don't hesitate to contact us via email %admin_email% or via phone number %admin_phone% |
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| Reservation Details: |
| Name |
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| Adults |
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| Comments |
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%site_title% |


A dog loving, husband, father, and web developer
React Maps App
See it on GitHub
MyReads App
Restaurant Review App
JavaScript Matching Game
Classic Arcade Game Replica
RGB Color Guessing Game


Episode #003
- Bootstrapping a SaaS Business to $30,000,000/year with David Hauser of Grasshopper
replay_10
play_arrow
forward_10
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00:45:24
Podcast Playlist
Episode #003
hello
Episode #043
hello


ECS 251 (Winter 2020)
Advanced Operating Systems
General information
| Information | Details |
|---|---|
| Lecture time and location | M/F 9-9:50am, W 9-10:50am, 2016 Haring Hall |
| Instructor | Sam King<EMAIL_ADDRESS>|
| Sam's Office Hours | Monday from 10-11am in 3061 Kemper |
| TA | Gary Yin<EMAIL_ADDRESS>|
| Final | No final exam! |
| Canvas | https://canvas.ucdavis.edu/courses/414503 |
| Piazza | https://piazza.com/class/k51lw3jp2zj1nw |
Overview
This class focuses on hot topics in Operating Systems. We will discuss classic papers in the area as well as cutting-edge research. We will discuss classic papers in the area as well as cutting-edge research. We will explore new ideas through projects and improve skills in presentations, critical thinking, systems and security programming, and creativity. The class format will consist of lectures, group meetings, and class project presentations.
The prerequisite for this class is undergraduate operating systems. Some of the topics we will explore are: kernels, security, authentication, and distributed systems.
Lectures
You are responsible for knowing about all announcements made in lecture. We will discuss expectations about the project, suggestions for how to succeed, and grading guidelines in class, and general class policy issues, so make sure you don't miss any lectures.
Textbooks
For a textbook on operating system fundamentals we suggest Operating Systems: Three Easy Pieces.
Some of the papers cover distributed systems, and if you're looking for a text book to help with some of the background material, please see this online book (CC-BY-SA license) by James Aspnes that gives good coverage of the background material, including Paxos.


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As a special thank you to museum visitors, we have posted exclusive web content to make your visit even more enjoyable. Just log in with the username and password provided to you when you visited for some special extras. Login
As a special thank you to museum visitors, we have posted exclusive web content to make your visit even more enjoyable. Just log in with the username and password provided to you when you visited for some special extras.


I'm pretty sure that James Bond, no matter of his evolution, wouldn't be the kind of driver who prefers a slammed machine. However, a Japanese builder seems to disagree and has set out to create a lowered Bond mobile - we're talking about an Aston Martin V8 Vantage here.
This is a now-old V8 Vantage, the kind built built between 2005 and 2017, with the machine having been given a conversion that dramatically changes its appearance without requiring a massive investment.
The factory V8 Vantage is no DBX, but it might seem so if we compare its fixed ride height with the lowest air suspension setting for the model seen here. That's right, we're looking at a bagged Aston, which isn't as bad as it might seem to purists.
For one thing, the air springs mean the one behind the wheel can adjust the ground clearance, so while this setup is for your local car meet, clearing a driveway exit requires a different one - these days, you can control the said hardware via an app, if you so wish.
It's no surprise that the new shoes of the GT play an important role here. And, to explain the title above, these appear to be custom wheels whose centers replicate the Bentley design and pack the badge of the Crewe carmaker, while their lips speak of the tuning subculture this machine belongs to.
And since we mentioned purists, the fact that we're actually looking at a V8 Vantage Roadster might just mean a part of them will cut this build some slack - after all, the open-top model was never the sharpest in the range.
This lowered Gaydon toy was modded over in Japan, with the project coming from Kazuki Ohashi. We're talking about a gear head who loves to play with icons, with this Ferrari Testarossa delivering a good example of his work.


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Mr. Shry , is a Assistant Director Of film Industries Also Artistic Director & Choreographer who have Work with many production Yash Raj / Phantom / Zee / Mtv/ PEN/ Many More Production.
He is been Dancing & Teaching from seven years.
He has performed in numerous live events with Dharmesh Yelande , Puneet Pathak ,Abhijeet Sawant, Mika Singh, Himesh Reshamiya.
WORK PROFILE
Shry is a well known choreographer and a dance performer who is working professionally in the field of performing arts he decided to open an institute to provide the knowledge of Indian classical music, western music, Dance, Acting , Fine-art and instrumental package to the interested people. The institute's name "Seven Institute of Performing Arts" is inspired by the seven colors, seven wonders, seven seas and seven SUR of music. She believes that "Music is a way of doing love, following your true passion, and shaping life together."
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Senior Manager
Indore – Head Office
Senior Manager
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We buy cats!
- iterate B2C ROI
- maximize interactive infrastructures
- drive front-end technologies
- whiteboard integrated channels
- morph value-added models
- matrix vertical methodologies
- empower open-source web-readiness
- productize scalable metrics
- engage ubiquitous web-readiness
- whiteboard vertical e-commerce
- productize next-generation synergies
- revolutionize integrated methodologies


[android] $ /usr/local/share/gradle-1.11/bin/gradle clean build
Creating properties on demand (a.k.a. dynamic properties) has been deprecated and is scheduled to be removed in Gradle 2.0. Please read http://gradle.org/docs/current/dsl/org.gradle.api.plugins.ExtraPropertiesExtension.html for information on the replacement for dynamic properties.
Deprecated dynamic property: "buildName" on "ProductFlavorDsl_Decorated{name=main, minSdkVersion=null, targetSdkVersion=null, renderscriptTargetApi=-1, renderscriptSupportMode=null, renderscriptNdkMode=null, versionCode=-1, versionName=null, applicationId=null, testApplicationId=null, testInstrumentationRunner=null, testHandleProfiling=null, testFunctionalTest=null, signingConfig=null, resConfig=null}", value: "1.0.97".
FAILURE: Build failed with an exception.
* What went wrong:
A problem occurred configuring project ':app'.
> Could not resolve all dependencies for configuration ':app:_debugCompile'.
> Could not find com.android.support:appcompat-v7:20.0.0.
Required by:
android:app:unspecified
* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.s
root@palm4fun-core-1:~/install# sslocal -c ~/.shadowconfig
INFO: loading config from /root/.shadowconfig
shadowsocks 2.1.0
2014-09-02 00:27:53 INFO starting local at <IP_ADDRESS>:1080
2014-09-02 00:27:53 INFO starting local at <IP_ADDRESS>:1080
2014-09-02 00:28:04 INFO connecting <IP_ADDRESS>:80
2014-09-02 00:28:04 INFO connecting <IP_ADDRESS>:80
2014-09-02 00:28:04 INFO connecting <IP_ADDRESS>:80


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Business Name
What is your business type?
How many vehicles does your business operate?
What Province are you based in?
What regions do you cover?


Digital Transformation and Information Security Management Researcher
I am a Senior Lecturer in The Business School, RMIT University (Saigon South Campus, Vietnam), as well as HDR Coordinator and Designated Authority in the School, leading and mentoring both Ph.D. candidates and supervisors to pursue the university’s HDR priorities and contributing to developing school-specific HDR strategies.
I am also Stream Lead (Organisational Innovation Capability Advancement & Governance) of the Global Business Innovation ECP (Enabling Impact Platform) in RMIT Australia, and Co-Lead of the Managing Smart Transformation research cluster in RMIT Vietnam.
Prior to joining The Business School, I have been Lecturer in the School of Science, Engineering & Technology for three years, where I taught courses in computer science areas such as data science & machine learning, data structures & algorithms, user-centered design, and technology leadership.
I have received various research and teaching awards at RMIT University, including the 2016 RMIT Prize for Research Impact (Enterprise category) for my active engagement with the industry through conducting research, and the “Living RMIT’s Values” award in 2021 which recognised my contributions to growing the programs while maintaining excellence in research and teaching.
I am a Co-founding Member and Secretary of the Vietnam Chapter of Association for Information Systems (VAIS).
Teaching and research interests
My teaching and research interests focus on the following areas, which are under the common theme of Digital Transformation:
- Information security behaviours and management
- Managing digital transformation
- Adoption of emerging technologies
Read more about my research program and research thrusts here.
I am supervising several Ph.D. candidates, and I always seek strong candidates who would like to do research in the areas listed above. Please find information about Ph.D. research opportunities here.
Updates
View older updates here .
Membership
- Association for Information Systems (AIS)
- AIS Vietnam Chapter (VAIS)
- Special Interest Group in Information Security and Privacy (SIGSEG)
- Australian Information Security Association (AISA)
I am serving in the editorial boards for the following refereed journals and conference proceedings:
- Australasian Journal of Information Systems (AJIS) (Section Editor & Reviewer)
- Computers & Security (Reviewer)
- Computers in Human Behavior (Reviewer)
- ICIS 2021 (Associate Editor & Reviewer)
- PACIS 2020 (Associate Editor & Reviewer)


The following text contains the nodeset of the given Reference before it is canonicalized. There exist four different styles to indicate how a given node is treated.
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Here is our Twitter Account.
Join Us on Twitter to see what we get up to.
This is where we post events and pictures of what were currently up to.
Here is our Facebook Account.
Join Us on Facebook to see what we get up to.
This is where we post pictures of what were currently up to. Follow us to keep up to date with events.
Here is our Github Account.
Join Us on Github to see what code we do, and lend a hand if you want.
This is where we put all of our code, and any projects we do. You will find various codes for things here.
Here is our Discord Server.
Join Us on our discord Server to see what project we are currently on.
This is where we talk about meets, and Projects.


Steem Developer Portal
Applications that interface directly with the Steem blockchain will need to connect to a steemd
node. Developers may choose to use one of the public API nodes that are available, or run their own instance of a node.
Public Nodes
| URL | Owner |
|---|---|
| api.steem.fans | @ety001 |
| steem.61bts.com | @ety001 |
| api.steemyy.com | @justyy |
| steem.justyy.workers.dev | @justyy |
| api.justyy.com | @justyy |
| api.steemitdev.com | @steemit |
| api.steemit.com | @steemit |
Private Nodes
The simplest way to get started is by deploying a pre-built dockerized container.
Dockerized p2p Node
To run a p2p node (ca. 2GB of memory is required at the moment):
Dockerized Full Node
to run a node with all the data (e.g. for supporting a content website) that uses ca. 14GB of memory and growing:
Syncing blockchain
Normally syncing blockchain starts from very first, 0
genesis block. It might take long time to catch up with live network. Because it connectes to various p2p nodes in the Steem network and requests blocks from 0 to head block. It stores blocks in block log file and builds up the current state in the shared memory file. But there is a way to bootstrap syncing by using trusted block_log
file. The block log is an external append only log of the blocks. It contains blocks that are only added to the log after they are irreversible because the log is append only.
Trusted block log file helps to download blocks faster. Steemit Inc, provides public block log file which can be downloaded from here and there is also option from community witness @gtg
which can be downloaded from here.
Both block_log
files updated periodically, as of May 2018 uncompressed block_log
file size ~110 GB. Docker container on stable
branch of Steem source code has option to use USE_PUBLIC_BLOCKLOG=1
to download latest block log and start Steem node with replay.
Block log should be place in blockchain
directory below data_dir
and node should be started with --replay-blockchain
to ensure block log is valid and continue to sync from the point of snapshot. Replay uses the downloaded block log file to build up the shared memory file up to the highest block stored in that snapshot and then continues with sync up to the head block.
Replay helps to sync blockchain in much faster rate, but as blockchain grows in size replay might also take some time to verify blocks.
There is another trick which might help with faster sync/replay on smaller equipped servers:
while :
do
dd if=blockchain/block_log iflag=nocache count=0
sleep 60
done
Above bash script drops block_log
from the OS cache, leaving more memory free for backing the blockchain database. It might also help while running live, but measurement would be needed to determine this.
Few other tricks that might help:
For Linux users, virtual memory writes dirty pages of the shared file out to disk more often than is optimal which results in steemd being slowed down by redundant IO operations. These settings are recommended to optimize reindex time.
echo 75 | sudo tee /proc/sys/vm/dirty_background_ratio
echo 1000 | sudo tee /proc/sys/vm/dirty_expire_centisecs
echo 80 | sudo tee /proc/sys/vm/dirty_ratio
echo 30000 | sudo tee /proc/sys/vm/dirty_writeback_centisecs
Another settings that can be changed in config.ini
is flush
- it is to specify a target number of blocks to process before flushing the chain database to disk. This is needed on Linux machines and a value of 100000 is recommended. It is not needed on OS X, but can be used if desired.
docker run \
-d -p 2001:2001 -p 8090:8090 --name steemd-default \
steemit/steem
docker logs -f steemd-default # follow along
docker run \
--env USE_WAY_TOO_MUCH_RAM=1 \
-d -p 2001:2001 -p 8090:8090 --name steemd-full \
steemit/steem
docker logs -f steemd-full


August 9, 2015
Dev Bootcamp: Phase 1, Week 2
I've survived another week. It feels as though I've been here 8 months, not two weeks. DBC time distortion is real.
Monday, 6:21 PM - Bring it on
I AM DONE!!!!!!!!
This is a momentous occasion. Today is the first day I completed all of the day's challenges, and so close to 6 PM (end of day). Yay.
My experience of today:
Super, super tired this morning. I had 2 cups of coffee, and it's got me a bit edgy and headache-y. We have an odd number of people in our cohort, and I drew the short straw today, so I got to pair with myself! Like solo day pt. 2. I'm grateful it worked out this way. I got to take naps and breaks without coordinating my schedule with another human person. I asked questions when I got stuck. I didn't dwell on problems for more than a few minutes without asking for help. It made my day a lot more enjoyable. Overall a good day.
Tuesday, 6:03 PM - The Inner Critic
Our weekly Engineering Empathy class was about the Inner Critic. We did a few scary, yet enlightening activities tha made it clear that DBC is interested in challenging us in ways beyond the technial. I'm grateful for the growth opportunity, and I would like to acknowledge that this kind of work (sometimes called shadow work) is in many ways more difficult (for me) than learing web development. Good news guys - I'm not bored. I'm not even sure what bored feels like anymore.
(9:36 PM) We worked on CSV / parsing today. I experienced a good amount of anger and frustration. It's a difficult topic to learn. It didn't start to come together for me until Thursday, after putting in some qualiy time banging my head against my keyboard.
Wednesday, 6:06 PM - Approaching Burnout
Combination of yesterday's EE topic, the fact that I essentially worked through the weekend, making this nonstop day 10, and the frustration of trying to work with unfamiliar file formats and modules that aren't as well-documented as I'm used to ... I'm hitting my edge.
We worked on Nokogiri and stuff today. It sucked. I did not understand many, many things.
A bright spot in the day - I met with our lovely DBC counselor. I left the conversation feeling as though I had my own personal cheerleader. As I'm in a high-pressure, high-stress educational program in a new state, that feeling of being supported really made my day. I am scared, but at the same time, I'm not afraid of bringing myself to the table and of showing my true colors, whatever they may be on any given day. And I'm incredibly impressed as the staff continue to create an environment where that is the normal way of things.
Thursday, 3:50 PM - Mock Assessment Day
The worst part of today's mock assesment / checkpoint challenge was feeling like everyone else would finish and I wouldn't and that would mean that I'm a failure as a person. At DBC we call this the "Inner Critic". So, while I was trying to code, part of my brain was occupied actively suppressing my inner voice. Some people finished, some didn't, but that really wasn't the point. Dealing with my inner critic is going to be a significant portion of the work I do here, I feel. I chatted with my cohort afterwards - some people had a similar experience to mine, and others did not, which proves to me that it's enirely possible to not have the 'devil on the shoulder' telling you mean things. Now I just need to figure out how to off mine.
Friday, 7:30 PM - Crushed it!
We had our second group project today and we just blew it out of the water. We finished at 3:00 PM on the dot with a functional MVP. We had time to fool around with the 'colored' gem, and a few stretch challenges. Overall, it was a very rewarding experience, topped off by the fact that we didn't have to come in on the weekend to finish (as happened the weekend prior).
We had a hip-hop dance class later in the day for some cohort bonding. I think there's a video, but I'll never say where.
Final Thoughts
What works?
- Naps are a girl's best friend.
- Theracanes are a marvelous invention.
- Give what you have, without stressing that it's not more.
- There's a great vegan lunch place down the block. Score for healthy eating! (not that vegan == healthy, they've just got a lot of yummy whole food options)
What doesn't?
- Pushing up to the point of exhaustion. No matter how much I wish to be able to work and learn more, my body has limits that I would do well to respect. This would be a really bad time to get sick.


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It's like, Box Inception or something.
April 19, 2015
Hello hello! For today's technical blog, I'm going to be making my best attempt to answer the question: "What is the difference between Margin, Border, and Padding?" Personally, I'll admit that it's probably one of the easier questions to answer for this challenge, but I'm challenging myself at the same time to keep my answer clear, concise, and condensed. Furthermore, I'm gonna try to explain things without any pictures to see if I can get my point across with just words! Here goes.
For starters, let's compare creating an HTML element and applying margins, borders, padding, and all that jazz to wrapping a gift shall we? With HTML and CSS, the HTML element you're styling is essentially your gift, Christmas present, whatever. You can choose to be lazy and not wrap it, and just say, "Here ya go," or take the time to wrap it up and make it look nice. Now I'm not saying that NOT applying padding and borders to your HTML element means it'll end up looking ugly, but bear with me for now.
Padding. It's CSS's version of bubble wrap. Before you put your gift in a box, you gotta consider if you want to add any kind of protective layer so your gift isn't bouncing around hitting the edges of the box and whatnot. Padding's completely optional, but it's nice to from time to time.
So if padding is bubble wrap, that makes the giftbox your border. Thing is, you can stylize the box, and on top of that, you don't have to actually use a box. With CSS, you can set the style of your border to be dashed, solid, double-lined, etc. So perhaps the best way to conceptualize that is to think of your border really as your box being "stylized" with whatever kind of giftwrap you choose.
Lastly, you have your margins. Well, this may not exactly go with the whole box-model idea, but in a nutshell, margins refer to the space around your HTML element between the outermost edges (the border) and the next element. So, keeping the Christmas present analogy in mind, it's like saying, put the presents side by side under the Christmas tree, or apply some margins (a.k.a. space) between them. Again, optional, and it all comes down to preference really.
Welp, that's it for my explanation, hope it made sense to you! Now if you'd be so kind, please teach me how to actually wrap presents so that they look nice!


Trivia!
-
What do you call the address of a webpage?
- S. URL
- T. DSLR
- Q. Da Wae
- W. HTTP
- B. Address on Internet Road, Washington D.C.
-
WWW stands for:
- Z. Wide World of Webs
- Y. Webs of Wide Worlds
- O. Web Window Wizard
- B. Window of Wild Wonders
- T. World Wide Web
-
In 1986, Carnegie Mellon built the world’s first self-driving car. What was its name?
- A. Navlab 1
- W. VR CAR 1
- Z. Uber 1
- F. Driver Zoom 1
- E. Bugs Bunny 1
-
What is the answer to the rest of the questions?
- R. STA
- B. TBA
- E. WOW
- S. WTE
- A. STE
Put the letters of correct answers together to get the solution piece.


If you find that you are coding recurring patterns of operations, you can write a modifier that represents the pattern. You will find that reading your code is easier when the patterns are exhibited with names of your choosing.
You write a modifier like you write a verb, using conjunction define or adverb define, or 2 :n or 1 :n for one-liners. When you assign the modifier to a name, that name becomes a conjunction or adverb, and it will be invoked as u name v y (monad) or x u name v y (dyad) if it is a conjunction, or u name y (monad)or x u name y (dyad) if it is an adverb.
When a modifier is invoked, the lines of the modifier are executed one by one, just as when a verb is invoked, and the result of the last sentence executed becomes the result of the modifier. The u (and v, for conjunctions) operand(s) of the modifier are assigned to the local names u (and v) when the modifier starts execution (in addition, if u is a noun, it is assigned to the local name m and if v is a noun it is assigned to n)
User-written modifiers are of two types: those that refer to the variables x and y, and those that do not.
In early versions of J, operands were named x., y., u., v., m., and n. rather than x, y, u, v, m, and n . The old form is obsolete. If you want to use it you must execute 9!:49 (1) to enable recognition of the old forms.
Modifiers That Do Not Refer To x Or y
If the modifier does not refer to x or y, its text is interpreted when its operands (u and, for conjunctions, v) are supplied, and its result is an entity which may be any of the four principal parts of speech. The result replaces the modifier and its operands in the sentence, and execution of the sentence continues.
For example, if the explicitly-defined conjunction c, which does not refer to x or y, is invoked as
x u c v y
the sequence u c v is evaluated to produce a resulting verb, and then that verb is executed with x and y as operands. The text of c is executed without reference to x and y .
Usually you will want your modifier to produce a verb, but nothing keeps you from writing a conjunction whose result is, for example, another conjunction. Here we will confine ourselves to verb results.
Let's write some of the utility modifiers referred to in earlier chapters. Ifany was an adverb that executed u if y had a nonzero number of items:
9!:3 (5) NB. Do this once to select simplified display
Ifany =: 1 : 'u ^: (*@#@])'
< Ifany
<^:(*@#@])
Ifany does not need to look at y; it creates a verb that executes u only if y has items. Here we have executed the adverb Ifany with the left operand <, and the result is a verb--the compound verb <^:(*@#@]) . We can execute that verb on a noun operand:
< Ifany 1 2 3
+-----+
|1 2 3|
+-----+
Remember that Ifany is an adverb, so it has precedence and the line is executed as if (< Ifany) 1 2 3 . The verb (< Ifany), which has the value <^:(*@#@]), is applied to 1 2 3 and produces the boxed result.
< Ifany ''
An empty y is left unboxed.
u Butifnull n was a conjunction that applied u if y had items, otherwise it produced a result of n . It could be written:
Butifnull =: 2 : 'n"_ ` u @. (*@:#@:])'
Again (*@:#@:]) will check whether y has items, and this time the result will be used to select the appropriate verb to execute.
< Butifnull 5
5"_`<@.(*@:#@:])
When Butifnull is executed with operands, it produces a verb.
< Butifnull 5 'abc'
+---+
|abc|
+---+
< Butifnull 5 ''
5
The verb it produces can be applied to its own noun operands.
Example: Creating an Operating-System-Dependent Verb
The great thing about modifiers that do not refer to x or y is that they are fully interpreted before the x and y operands are supplied, so there is no interpretive overhead during the processing of the data. Here is a more complex example taken from the J system. The goal is to define a verb playsound that can be used to play a .wav file under Windows:
NB. y is the file data to be played
playsound =: '' adverb define
select. 9!:12 NIL
case. 2 do.
'winmm.dll sndplaysound i *c i' & (15!:0) @ (;&1)
case. 6 do.
NB. 2=nodefault + 4=memory + 16b20000 = file
'winmm.dll PlaySound i *c i i' & (15!:0) @ (;&(0;4))
end.
)
To begin with, let's make sense of this odd sequence '' adverb define . The adverb define defines an adverb, but what's the ''? Simple--it's the left argument to the adverb that was defined: the adverb is executed with u set to '' . The result of that execution of the adverb is what gets assigned to playsound .
So, what happens when the adverb is executed? The adverb calls the foreign 9!:12 to see what operating system is running, and executes a selected line that contains the definition of a compound verb. Since that line is the last one executed, it becomes the result of the adverb; so the result of the adverb is the selected verb, and that is what is assigned to playsound . On my system, this leaves playsound defined as a single compound verb:
playsound
'winmm.dll PlaySound i *c i i'&(15!:0)@(;&(0;4))
Lovely! No check for operating system needs to be made when I invoke playsound; the check was made when playsound was defined.
Example: The LoopWithInitial Conjunction
The conjunction LoopWithInitial that we learned about earlier can be written as
LoopWithInitial =: 2 : 'u&.>/\.&.(,&(<v))&.|.&.(<"_1)'
It's just one application of &. after another. We can use it to illustrate a subtlety about modifiers that you should be aware of. Consider an invocation of LoopWithInitial :
vb =. +
init =. 4 5
vb LoopWithInitial init
vb&.>/\.&.(,&(<4 5))&.|.&.(<"_1)
The verb that is produced seems in order, but notice one point: the verb contains the value of init, but the name of vb . This is a rule: the name of a verb argument is passed into a modifier, but the value of a noun argument is passed. Note that if these lines appear inside a verb, the verb vb, which is assigned by private assignment, is not defined inside LoopWithInitial, because LoopWithInitial is running in a different explicit definition from the one in which vb was assigned. As we see above, LoopWithInitial can pass vb into other modifiers, but if LoopWithInitial tried to execute vb it would fail.
Before we move on I want to point out one tiny example of the beauty of J. For &.(,&(<4 5)) to work, there must be some obverse of ,&(<4 5) that undoes its effect. What would that be? We can see what the interpreter uses:
,&(<4 5) b. _1
}: :.(,&(<4 5))
It undoes the addition of a trailing item with }: which discards the last item. Yes, that makes sense (the obverse has its own obverse which is the original verb).
Example: A Conjunction that Analyzes u and v
The conjunction u&.v expresses with great clarity the sequence of applying a transformation v, then applying the operation u, then inverting the transformation v . The dyad x u&.v y applies the same transformation to both x and y, but in many cases the transformation is meaningful only on one operand, and what we would like is a conjunction Undery such that x u Undery v y produces v^:_1 x u v y . For example, to encipher the characters of y by replacing each one by the letter x positions earlier, we would use
5 1 3 2 -~ Undery ('abcdefghijkl'&i."0) 'hijk'
to perform the function
t =. 'abcdefghijkl'&i."0 'hijk'
t =. 5 1 3 2 -~ t
t { 'abcdefghijkl'
chgi
With that x stuck in the middle of the desired result v^:_1 x u v y it appears that we will have to refer to x in our conjunction, but actually we can use an advanced feature of J to make the x disappear. The sequence (u v) produces a verb that, when executed as the dyad x (u v) y, gives the result of x u v y (you will learn about this and more if you persevere with the part of the book devoted to tacit programming). So, the verb we are looking for is v^:_1 @: (u v) and we can write
Undery =: 2 : 'v^:_1 @: (u v)'
5 1 3 2 -~ Undery ('abcdefghijkl'&i."0) 'hijk'
chgi
Before we pat ourselves on the back for this achievement, we should consider whether the verb produced by Undery has the proper rank. We see that it does not: Undery applies v to the entire y, and u to the entire x and the result of u y, when really we should be performing the operation on cells of x and y, where the cell-size of x is given by the left rank of u and the cell-size of y is given by the right rank of v . For example, if we wanted to take the -x least-significant bits of y, we could use
_3 {."0 1 Undery #: 30
6
(remember that monad #: converts an integer y to its binary representation, producing a Boolean list--we are taking x bits of that and then converting back to integer) The binary code for 30 is 11110, the 3 low-order bits are 110, and the result is 6. But when we have list arguments, we get an incorrect result:
_3 _4 _3 {."0 1 Undery #: 32 31 30
0 15 12
The result for 30 is wrong: because #: was applied to the entire y, 110 was extended with framing fills to become 1100, and the result is 12 instead of the expected 6. To get the right result we need to apply the verb to cells of the correct size:
_3 _4 _3 ({. Undery #:"0) 32 31 30
0 15 6
and naturally we would like to make Undery automatically produce a verb with the correct rank.
The way to find the rank of the verb u is to execute u b. 0 . In our conjunction u and v are verbs, and we can use their ranks to produce an Undery that gives the correct rank:
Undery =: 2 :'(v^:_1)@:(u v)"((1{u b.0),2{v b.0)'
We have selected the left rank of u and the right rank of v, and put them as the ranks of the verb produced by Undery . This produces the desired result:
_3 _4 _3 {."0 1 Undery #: 32 31 30
0 15 6
and we can see the verb produced by Undery, with its ranks:
{."0 1 Undery #:
#:^:_1@:({."0 1 #:)"0 0
This version of Undery produces correct results, but we should add one small improvement: the inverse of monad #: should be monad #. rather than monad #:^:_1, because the two forms are different. One difference is obvious: the rank of #:^:_1 is infinite, while the rank of #. is 1; but that is immaterial in Undery . The other difference is subtle but it could be significant: the two forms may have different performance in compounds. The interpreter recognizes certain compounds for special handling; the list grows from release to release, but it's a pretty safe bet that #. will be selected for special treatment before #:^:_1 (and < before >^:_1, and so on). So, we would like to replace the v^:_1 with the actual inverse of v . We can get the inverse of v by looking at v b. _1 which produces a character-string representation of the inverse of v . We can then convert this string to a verb by making it the result of an adverb (we can't make it the result of a verb, because the result of a verb must be a noun). So, we are led to
Undery=:2 :'(a: 1 :(v b._1))@:(u v)"((1{u b.0),2{v b.0)'
where we defined the adverb 1 :(v b._1) and then immediately executed it with an ignored left operand a: to create the desired verb form. Now we have
{."0 1 Undery #:
#.@:({."0 1 #:)"0 0
which we can be content with.
An Exception: Modifiers that Do Not Refer to u or v
In very early versions of J, modifiers could not refer to their x and y operands. In those days, a modifier used the names x and y to mean what we now mean by u and v . Modern versions of J continue to execute the old-fashioned modifiers correctly by applying the following rule: if a modifier does not contain any reference to u, v, m, or n, it is assumed to be an old-style modifier, and references to x and y are treated as if they were u and v . You may encounter old code that relies on this rule, but you should not add any new examples of your own.
Modifiers That Refer To x Or y
Most of the modifiers you write will refer to x and y . The names x and y refer to the noun operands that are supplied when the modifier is invoked as [x] u adverb y or [x] u conjunction v y .
Here is an example, which is invoked as [x] u InLocales n y, where u is a verb and n is a list of locale names; it executes u y (or x u y if the invocation is dyadic) in each locale of n :
InLocales =: 2 : 0
l1 =. 18!:5 ''
for_l. n do.
cocurrent l
u y
end.
cocurrent l1
''
:
l1 =. 18!:5 ''
for_l. n do.
cocurrent l
x u y
end.
cocurrent l1
''
)
This illustrates the important points. The text of the definition is not interpreted until the x and y are available, in other words until the verb defined by u InLocales n is invoked. Since that invocation may be either monadic or dyadic, two versions of the conjunction are given, one for each valence. The result of the execution must be a noun, because the definition defines a verb and the result of a verb is always a noun.
That last point is important and I want to emphasize it. It is true that InLocales is a conjunction, and yet its text defines a verb. How is this possible? Because InLocales is executed as a conjunction at the time it gets its u and n operands, but its text is not interpreted until the derived verb (which consists of u, n, and the text of InLocales) gets its x and y operands. When InLocales is supplied with u and n, it is executed to produce a verb which consists of the text of InLocales along with u and the value of n . This derived verb is hidden inside the interpreter where it waits to be applied to a y (and possibly x). When the derived verb is given its operands, it starts interpreting the text of InLocales, which was unusable until the time that y and x could be given values, and initializes u and n from the values that were saved when u InLocales n was executed. Thus the text of InLocales describes a verb operating on y and x .
Your modifiers should refer to x and y only if necessary. Ifany from the previous section could have been written
Ifany =: 1 : 'u^:(*#y) y'
which would produce exactly the same result as the other definition, but it would usually be slower, because the text could not be interpreted until x and y could be defined. If the conjunction happens to be used in a verb of low rank, the result could be soporific.
Here's a puzzle that may be of interest to those readers whose eventual goal is Full Guru certification. Why did InLocales save and restore the current locale? Didn't we say that completion of any named entity restores the original locale?
Let's see what happens when we don't restore, using a simple testcase:
t =: 1 : 0
cocurrent u
y
)
(<'abc') t 0
0
18!:5 ''
+---+
|abc|
+---+
Sure enough, the current locale was changed! But see what happens when we give a name to the verb created by the execution of t :
cocurrent <'base'
tt =: (<'abc') t
tt 0
0
18!:5 ''
+----+
|base|
+----+
The current locale was restored. What causes the difference?
The answer is that in the sentence (<'abc') t 0, the named adverb t is executed when it is given its operand <'abc' . The result of that execution is the derived verb (<'abc') t which has no name. When the derived verb is executed with the operand 0, the text is interpreted, causing a change to the current locale, and when the derived verb finishes, the current locale is not restored because the derived verb is anonymous. If we give that derived verb a name (tt here), it restores the current locale on completion.
The observed behavior reinforces the point that the text of a modifier that refers to x or y is not interpreted when the modifier is executed; it is interpreted only when the derived verb is executed.


x-gchild
simple
complex1
complex2
media
shadowTarget
deepTarget
x-child2
Trivial
simple
complex1
complex2
media
priority
Computed
Added
Sub-added
x-keyframes
bar1
bar2
bar3
I should be red.
1
2
a
b
Hello world


Include unique tokens in HTTP requests when performing sensitive operations to prevent Cross-Site Request Forgery (CSRF). Unique tokens in HTTP requests help prevent CSRF attacks. An attacker who does not have the unique token will not be able to successfully form a URL that can carry out a malicious action on the behalf of an authenticated user.
To include unique tokens in HTTP requests:
Identify sensitive operations. Review application design and code to identify all operations that require authorization.
Identify code that performs sensitive operations. Identify all pages that are involved in performing sensitive operations. This includes both the pages that link to sensitive operations and the code that actually carries out the sensitive operations.
Choose a method for generating unique tokens. There are different ways to generate unique tokens. In Play Framework, use a Play 2 Authenticity token for this purpose. Every form post will contain a hidden parameter containing a UUID. The UUID is signed and its signature is stored in the session. When the user submits the form, it includes the UUID and the signature. The validation passes if the signatures match: session.sign=uuid.sign. An attacker who does not have the token cannot generate the correct signature. This protects the application from a CSRF attack.
Add unique tokens to HTTP requests. Add code that sends the generated unique tokens in HTTP requests to the pages that link to sensitive operations. Adding the authenticity token is trivial: For every form, add @authenticityToken() inside the form elements. For example:
@import _root_.views.html.authtoken.authenticityToken
<form action="@routes.Application.process()" method="post">
@authenticityToken()
Please input your name
<input name="name" />
<input type="submit"/>
</form>
Add token-validation code. On the pages that carry out sensitive operations, add code that checks if the tokens sent in HTTP requests are valid or not. To validate the token, use the @AuthenticityToken Play validator. For example: import authtoken.validator.AuthenticityToken;
public class FormData {
@AuthenticityToken
public String authtoken;
public String name;
}
public static Result process() {
Form form = form(FormData.class).bindFromRequest();
if (form.hasErrors()) {
return badRequest("authenticity validation FAILED");
} else {
return ok("authenticity validation PASSED");
}
}


---
layout: page
title: Song Sheets
permalink: /printables/songsheets
---
I currently have {{ song_lessons.size }} licensed song sheets available purchase. The first page of each sheet is previewed below — click any image to view that song's full video tutorial, as well as link to buy each song sheet.
All my song sheets are available for purchase through Musicnotes.com
Each arrangement is offically licensed, ensuring the songwriters are properly paid for their part in creating the original song. View my guide showing how to buy & print these »
Members on my Patreon page save 50% on each purchase
Every month I send out a discount code to all members... the current month's code can always be found on the Patreon post available @ playsongnotes.com/discount (requires Patreon login to view the code)
Looking for a specific song?
Use the search page to find exactly what you're looking for... you can browse my songs by artist, by song name, or by year the song was released.
Here's the full collection, starting with the most recent. Click any image below to view that full lesson.


PicoContainer tries to determine what to inject into the constructor of each component as it instantiates (or setters/fields for other injection types). Sometimes there can be two or more classes that could equally satisfy a constructor:
pico.addComponent(new Apple("Braeburn")); pico.addComponent(new Apple("Granny Smith")); pico.addComponent(Pie.class); // needs Apple Pie pie = pico.getComponent(Pie.class); // throws AmbiguousComponentResolutionException citing there are two Apples.
The best advice is don't setup PicoContainer in a way that would allow ambiguities (just put in one Apple in the case above).
An alternative strategy would be to use custom parameters (TODO)
One more strategy would be to use named parameters
class Pie { Pie(Apple grannySmith) { // etc } } ... pico.addComponent("braeburn", new Apple("Braeburn")); pico.addComponent("grannySmith", new Apple("Granny Smith")); pico.as(USE_NAMES).addComponent(Pie.class); // needs Apple, specifically a Granny Smith. Pie pie = pico.getComponent(Pie.class); // OK this time.
To use names Parameters, you are going to need Paranamer 1.0 (or above) in the classpath, as well as ASM 3.0 (or above). If you are expecting Pico to work based on parameter names, but its not doing so, it is most likely that you do not have paranamer-1.0.jar in the classpath. See http://repository.codehaus.org/com/thoughtworks/paranamer/paranamer/ for versions of paranamer. Also http://maven.objectweb.org/maven2/asm/asm/ for the ASM jar.
You also have to make a decision as to when parameter name data is made. There are two choices for this:
When at runtime, PicoContainer will need to be accompanied by ASM and Paranamer in the classpath. You will also need to compile your Java classes with debug information.
When at build time, you will need to use and Ant or Maven fragment to post-process the compiled classes for your app to add the paramaeter name data. At runtime, neither Paranamer nor ASM will be needed. See http://paranamer.codehaus.org/ - specifically the quick start section pertinent to Ant and Maven.


Graduation is the culmination of four (or more years of hard work).
Stanford Graduation has it's own amazing traditions.
Stanford Seniors act and dress wacky as they enter the stadium.
Stanford graduation speakers always have Stanford ties.


WITNESS LIST Health Services Committee February 16, 1999-1:30P SB 61 For: Allen, Laura (Herself as a parent), Austin Ledlow, Geneva (Herself), Austin Leis, Paula Faye, MD (Texas Dermatological Society), Houston Registering, but not testifying: On: Culmo, Cynthia (Texas Department of Health), Austin SB 99 For: Hood, Joyce (Harris Methodist Fort Worth / THR), Fort Worth On: Hendricks, Kate, MD (Texas Department of Health), Austin Registering, but not testifying: For: Bailey, Ken (Texas State Assn. of Fire Fighters), Austin Cooper, Amy (Texas Hep. C Connection), Austin Tesmer, David (Texas Health Resources), Irving Wall, Matthew (THA - The Assn. of Texas Hospitals & Health Care Orgs.), Austin Willman, James, Dir. (Texas Nurses Assn.), Austin SB 122 For: Atkins, James, MD (American Heart Assn.), Dallas Dunn, Kevin (American Airlines), Los Angeles Tighe, Michael (Himself), Boston Walker, Craig (Texas Ambulance Assn.), Austin On: Culmo, Cynthia (Texas Department of Health), Austin Hampton, Hartley (Texas Trial Lawyers Assn.), Austin Registering, but not testifying: For: Banning, Tom (Texas Academy of Family Physicians), Austin Cain, Randy (Texas Fire Chiefs Assn.), Austin Gilchrist, Alfred (Texas Medical Assn.), Austin Hagan, Dan (American Airlines), Fort Worth Sweitzer, John (American Heart Assn.), League City Tangen, Esther (AARP), Austin Tesmer, David (Texas Health Resources), Irving Walsh, Frank (American Red Cross), Austin SB 131 Registering, but not testifying: For: Wall, Matthew (THA - The Assn. of Texas Hospitals & Health Care Orgs.), Austin SB 261 Registering, but not testifying: For: Mitchell, Beth (Advocacy Inc.), Austin Schmitt, Cyndie (Texas Council of Community MHMR Centers, Inc.), Austin On: Hale, Karen (Texas Department of Mental Health & Mental Retardation), Austin SB 389 For: Allison, Jim (County Judges & Commissioners Assn. of Texas), Austin Newsom, Lisa (North Texas SIDS Alliance), Bedford On: Bays, Richard (Texas Department of Health), Austin Registering, but not testifying: For: Duff, Scott (SIDS Support Group for San Antonio), Round Rock Lee, Donald (Conference of Urban Counties), Austin On: Clement, Kathleen (Texas Department of Health), Austin SB 414 Registering, but not testifying: For: Courtney, Chuck (Texas Retailers Assn.), Austin Gonzales, David (Legend Pharmacies S.W.), Austin Reagan, Karen (Texas Pharmacy Assn.), Austin Shields, Brad (Texas Society of Health System Pharmacists), Austin On: Dodson, Gay (Texas State Board of Pharmacy), Austin Morse, Steve (Texas State Board of Pharmacy), Austin