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jQuery pitfalls to avoid [closed]
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Being unaware of the performance hit and overusing selectors instead of assigning them to local variables. For example:-
$('#button').click(function() {
$('#label').method();
$('#label').method2();
$('#label').cs...
Testing two JSON objects for equality ignoring child order in Java
I'm looking for a JSON parsing library that supports comparing two JSON objects ignoring child order, specifically for unit testing JSON returning from a web service.
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What is __future__ in Python used for and how/when to use it, and how it works
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With __future__ module's inclusion, you can slowly be accustomed to incompatible changes or to such ones introducing new keywords.
E.g., for using context managers, you had to do from __future__ import with_statement in 2.5, as the with keyword was new and shouldn't be used ...
JavaScript validation for empty input field
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<input name="question"/> I want to call IsEmpty function when submit clicking submit button.
13 Answers
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What is the preferred syntax for initializing a dict: curly brace literals {} or the dict() function
...on coding standards. This may seem like a pointlessly nit-picky question, but I am trying to focus on best-practices as I learn, so I don't have to unlearn any 'bad' habits.
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What does “dereferencing” a pointer mean?
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Reviewing the basic terminology
It's usually good enough - unless you're programming assembly - to envisage a pointer containing a numeric memory address, with 1 referring to the second byte in the process's memory, 2 the third, 3 the fou...
Sleep in JavaScript - delay between actions
Is there a way I can do a sleep in JavaScript before it carries out another action?
11 Answers
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Why are Standard iterator ranges [begin, end) instead of [begin, end]?
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The best argument easily is the one made by Dijkstra himself:
You want the size of the range to be a simple difference end − begin;
including the lower bound is more "natural" when sequences degenerate to empty ones, and al...
How is an overloaded method chosen when a parameter is the literal null value?
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Is null a String variable pointing to nothing ?
A null reference can be converted to an expression of any class type. So in the case of String, this is fine:
String x = null;
The String overload here is chosen because the Java compiler picks ...
Convert array to JSON
...2,3,..] which holds a few integers.
I've added a few values to the array, but I now need to send this array to a page via jQuery's .get method. How can I convert it to a JSON object for sending?
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