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Why is Everyone Choosing JSON Over XML for jQuery? [closed]
...cord, struct, dictionary, hash table, keyed list, or associative array.
An ordered list of values. In most languages, this is realized as an array, vector, list, or sequence.
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PHP exec() vs system() vs passthru()
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Highly active question. Earn 10 reputation in order to answer this question. The reputation requirement helps protect this question from spam and non-answer activity.
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In log4j, does checking isDebugEnabled before logging improve performance?
...nd once in debug() method. The cost of invoking isDebugEnabled() is in the order of 5 to 30 nanoseconds which should be negligible for most practical purposes. Thus, option 2 is not desirable because it pollutes your code and provides no other gain.
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Fastest way to check if string contains only digits
... testing (always profile because the results depend on hardware, versions, order, etc.):
static bool isDigitsFr(string s) { if (s == null || s == "") return false; for (int i = 0; i < s.Length; i++) if (s[i] < '0' || s[i] > '9') return false; return true; }
static bool isDigitsFu(string s)...
jQuery duplicate DIV into another DIV
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You'll want to use the clone() method in order to get a deep copy of the element:
$(function(){
var $button = $('.button').clone();
$('.package').html($button);
});
Full demo: http://jsfiddle.net/3rXjx/
From the jQuery docs:
The .clone() method performs ...
Why does C++ not allow inherited friendship?
...e that the interface class A has to boilerplate call wrappers to Z, and in order to extend access to subclasses, A's boilerplate has to be essentially duplicated in every base class like B. An interface normally expresses what functionality a module wants to offer, not what functionality in others ...
NSDefaultRunLoopMode vs NSRunLoopCommonModes
...eeds to respond to incoming events, it should be attached to a run loop in order to wake up the thread when new events arrive. This is the case of NSURLConnection generated threads, as they only wake on incoming events (from the network).
Each thread can be associated to multiple run loops, or can ...
UITextField - capture return button event
...d "return" keyboard button while editing UITextField?
I need to do this in order to dismiss keyboard when user pressed the "return" button.
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SQL Server IN vs. EXISTS Performance
...e).
Both forms can be converted to join forms internally, have the join order reversed, and run as loop, hash or merge--based on the estimated row counts (left and right) and index existence in left, right, or both sides.
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Remove elements from collection while iterating
...ection, which would imply a second iteration work to look for this item in order to remove it.
I think it is worth mentioning that the remove method of the Iterator interface is marked as "optional" in Javadocs, which means that there could be Iterator implementations that throw UnsupportedOperatio...