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Automatically deleting related rows in Laravel (Eloquent ORM)
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What are the details of “Objective-C Literals” mentioned in the Xcode 4.4 release notes?
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[Edit]
zxoq at http://news.ycombinator.com/item?id=3672744 has added more interesting new subscripting. (Added with literals):
arr[1] === [arr objectAtIndex:1]
dict[@"key"] === [dict objectForKey:@"key"]
[Edit 2]
The new ObjC literals were discussed in multiple WWDC 2012 sessions. I...
sys.argv[1] meaning in script
...out the user's knowledge. This answer attempts to answer the question at a more tutorial level.
For every invocation of Python, sys.argv is automatically a list of strings representing the arguments (as separated by spaces) on the command-line. The name comes from the C programming convention in wh...
Use of 'prototype' vs. 'this' in JavaScript?
...ly way to reference the constructor is via A.constructor. It would be much more common to do:
var A = function () {
this.x = function () {
//do something
};
};
var a = new A();
Another way of achieving a similar result is to use an immediately invoked function expression:
var A =...
Identify if a string is a number
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358
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What does “use strict” do in JavaScript, and what is the reasoning behind it?
... Mode might interest you: John Resig - ECMAScript 5 Strict Mode, JSON, and More
To quote some interesting parts:
Strict Mode is a new feature in ECMAScript 5 that allows you to place a program, or a function, in a "strict" operating context. This strict context prevents certain actions from bei...
NSString tokenize in Objective-C
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thanks, but how to split a NSString that is separated by more tokens? (If you know what I mean, my English is not very good) @Adam
– 11684
Apr 9 '12 at 11:53
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How to turn a String into a JavaScript function call? [duplicate]
...hich equals clickedOnItem(t.parentNode.id), which was what the OP wanted.
More full example:
/* Somewhere: */
window.settings = {
/* [..] Other settings */
functionName: 'clickedOnItem'
/* , [..] More settings */
};
/* Later */
function clickedOnItem (nodeId) {
/* Some cool event handling...
When to throw an exception?
...r function which examines a List<> and returns true if its length is more than 50, and false if the length is less. This function asks the question, "Does this list have more than 50 items?" But this question makes an assumption - it assumes that the object it is given is a list. If I hand it ...
What is JSON and why would I use it?
...by Douglas Crockford), it has been the preferred format because it is much more lightweight
You can find a lot more info on the official JSON web site.
JSON is built on two structures:
A collection of name/value pairs. In various languages, this is realized as an object, record, struct, dictiona...