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How to pull a random record using Django's ORM?
... of them: newest, one that was not visited for most time, most popular one and a random one.
15 Answers
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What would be C++ limitations compared C language? [closed]
..., it which case it would compile in C, but be shunned by most C++ coding standards, and also by many C programmers; witness the "don't cast malloc" comments all over Stack Overflow).
They are not the same language, and if you have an existing project in C you don't want to rewrite it in a differe...
Namespace + functions versus static methods on a class
... from the same namespace can be declared in multiple headers (the almost-standard swap function is the best example of that).
Extension III
The basic coolness of a namespace is that in some code, you can avoid mentioning it, if you use the keyword "using":
#include <string>
#include <vec...
Is using a lot of static methods a bad thing?
...eep track of internal states. For example, if I need to transform A into B and don't rely on some internal state C that may vary, I create a static transform. If there is an internal state C that I want to be able to adjust, then I add a constructor to set C and don't use a static transform.
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Java Date vs Calendar
Could someone please advise the current "best practice" around Date and Calendar types.
13 Answers
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jQuery: How to capture the TAB keypress within a Textbox
I want to capture the TAB keypress, cancel the default action and call my own javascript function.
9 Answers
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How do I programmatically click a link with javascript?
...r it worked in all browsers I tried, including IE, Safari, Chrome, Firefox and Opera.
– arik
Jan 29 '12 at 17:17
5
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&& (AND) and || (OR) in IF statements
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No, it will not be evaluated. And this is very useful. For example, if you need to test whether a String is not null or empty, you can write:
if (str != null && !str.isEmpty()) {
doSomethingWith(str.charAt(0));
}
or, the other way around
if ...
Examples of Algorithms which has O(1), O(n log n) and O(log n) complexities
What are some algorithms which we use daily that has O(1), O(n log n) and O(log n) complexities?
11 Answers
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Strip double quotes from a string in .NET
I'm trying to match on some inconsistently formatted HTML and need to strip out some double quotes.
12 Answers
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