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Can you write nested functions in JavaScript?
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Is this really possible.
Yes.
function a(x) { // <-- function
function b(y) { // <-- inner function
return x + y; // <-- use variables from outer scope
}
return b; // <-- you can even return a function.
}
console.log(a(3)(4));
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Extract a regular expression match
I'm trying to extract a number from a string.
12 Answers
12
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SAML: Why is the certificate within the Signature?
...ou're working with, but in .Net you can check it like this:
// load a new XML document
var assertion = new XmlDocument { PreserveWhitespace = true };
assertion.LoadXml("The SAML XML that you were sent");
// use a namespace manager to avoid the worst of xpaths
var ns = new XmlNamespaceManager(asser...
JavaScript ternary operator example with functions
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Heh, there are some pretty exciting uses of ternary syntax in your question; I like the last one the best...
x = (1 < 2) ? true : false;
The use of ternary here is totally uncessesary - you could simply write
x = (1 < 2);
Likewise, the condi...
Python non-greedy regexes
How do I make a python regex like "(.*)" such that, given "a (b) c (d) e" python matches "b" instead of "b) c (d" ?
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Interface or an Abstract Class: which one to use?
Please explain when I should use a PHP interface and when I should use an abstract class ?
11 Answers
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How do I copy an entire directory of files into an existing directory using Python?
...t the start. No part of the code actually would have a problem with a pre-existing dir. This needs to be changed. At least provide an exist_ok=False parameter to the call
– cfi
Sep 26 '12 at 16:05
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Detect 7 inch and 10 inch tablet programmatically
...this, we can get the information required to size the display:
int widthPixels = metrics.widthPixels;
int heightPixels = metrics.heightPixels;
This will return the absolute value of the width and the height in pixels, so 1280x720 for the Galaxy SIII, the Galaxy Nexus etc.
This isn't usually hel...
Is there a function in python to split a word into a list? [duplicate]
...issen: I get "ValueError: empty separator" when trying that. The empty regex is not terribly well defined.
– Greg Hewgill
Aug 17 '10 at 5:23
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Size of Matrix OpenCV
...m new to OpenCV. Could you please tell me how to obtain the size of a matrix in OpenCV?. I googled and I am still searching, but if any of you know the answer, please help me.
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