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How do I check whether a jQuery element is in the DOM?
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There is a pure-DOM way to do this, which is syntactically more readable, and I imagine very similar in terms of performance: document.contains($foo[0])
– Joel Cross
Dec 1 '15 at 10:16
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What does a just-in-time (JIT) compiler do?
What does a JIT compiler specifically do as opposed to a non-JIT compiler? Can someone give a succinct and easy to understand description?
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IndentationError: unindent does not match any outer indentation level
...paces mixed in with your tabs. Try doing a search & replace to replace all tabs with a few spaces.
Try this:
import sys
def Factorial(n): # return factorial
result = 1
for i in range (1,n):
result = result * i
print "factorial is ",result
return result
print Factorial...
CSS/HTML: What is the correct way to make text italic?
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Case 2 does not correspond to what HTML5 drafts actually say – which is obscure and varies by version, but no version suggests using i for book, song, album, or movie names (which would, debatably, be candidates for using cite).
– Jukka K. Korpela
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Is it possible to force ignore the :hover pseudoclass for iPhone/iPad users?
...lt;body class="yui3-skin-sam no-touch">
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</body>
And have all CSS rules with ":hover" below ".no-touch":
.no-touch my:hover{
color: red;
}
Somewhere in the page, I have javascript to remove no-touch class from body.
if ('ontouchstart' in document) {
Y.one('body').removeCl...
Observer Design Pattern vs “Listeners”
It seems to me that the Observer design pattern as described in GOF is really the same thing as Listeners found in various toolkits. Is there a difference between the concepts, or are Listeners and Observers really the same thing.
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What's the equivalent for eclipse's ALT+UP/DOWN (move line) in Visual Studio?
...select a tag ? for example I have selected a div tag and I want to move up all child element , instead of selecting by mouse .
– Arash
Apr 17 '16 at 6:34
14
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C# short/long/int literal format?
... // uint
var ul = 1UL; // ulong
var l = 1L; // long
I think that's all... there are no literal specifiers for short/ushort/byte/sbyte
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Mercurial for Beginners: The Definitive Practical Guide
...configure it to ignore files?
Ignore is configured in a normal text file called .hgignore in the root of your repository. Add it just like a normal file with:
hg add .hgignore
There are two syntax options available for file matching, glob and regexp. glob is unix-like filename expansion and rege...
Double vs single quotes
I'm really new to Ruby and I'm trying to understand if there's a specific time when I should use "" vs '' .
8 Answers
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