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Using reCAPTCHA on localhost
I'm developing a website using PHP and I want to make a human verification in one of the sessions. For the development, I'm initially running the system locally and when it is ready, I'm gonna make put it on in a certain domain.
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Fastest way to tell if two files have the same contents in Unix/Linux?
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Cleaner way to do a null check in C#? [duplicate]
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61
Is this really considered cleaner?
– ClassicThunder
Jul 16 '13 at 13:35
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In-Place Radix Sort
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Well, here's a simple implementation of an MSD radix sort for DNA. It's written in D because t...
Algorithm to return all combinations of k elements from n
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@hgus1294 True, but that would be cheating. Op requested an algorithm, not a "magic" method that is tied to a particular programming langua...
UICollectionView Set number of columns
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I implemented UICollectionViewDelegateFlowLayout on my UICollectionViewController and override ...
Finding quaternion representing the rotation from one vector to another
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Yes, this works. See source code. L61 handles if the vectors face opposite directions (return PI, otherwise it'd return identity per @jpa's remark). L67 handles parallel vectors: mathematically unnecessary, but faster. L72 is Polaris878's answer, assuming both...
What is the idiomatic Go equivalent of C's ternary operator?
In C/C++ (and many languages of that family), a common idiom to declare and initialize a variable depending on a condition uses the ternary conditional operator :
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How can I obfuscate (protect) JavaScript? [closed]
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yes, but recently they left Closure compiler and are using UglifyJS now. The JQuery code was buggy after compressing with closure compiler
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