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How can I wait for set of asynchronous callback functions?

...h your code, so I'll make up a scenario. Let's say you have 10 ajax calls and you want to accumulate the results from those 10 ajax calls and then when they have all completed you want to do something. You can do it like this by accumulating the data in an array and keeping track of when the last ...
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Dependent DLL is not getting copied to the build output folder in Visual Studio

...ects in the solution. There is one main project which acts as the start up and uses other projects. There is one project say "ProjectX". Its reference is added to main project. The ProjectX references another .NET dll (say abc.dll) that isn't part of the solution. ...
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PHPDoc type hinting for array of objects?

...hen an IDE, for ex. PHPEd, will know what type of object it's working with and will be able to provide a code insight for that variable. ...
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Can someone explain this 'double negative' trick? [duplicate]

...script, but I have been reading Mark Pilgrim's "Dive into HTML5" webpage and he mentioned something that I would like a better understanding of. ...
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Is it correct to use JavaScript Array.sort() method for shuffling?

I was helping somebody out with his JavaScript code and my eyes were caught by a section that looked like that: 12 Answers ...
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Convert between UIImage and Base64 string

Does anyone know how to convert a UIImage to a Base64 string, and then reverse it? 24 Answers ...
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Getting A File's Mime Type In Java

... Be aware that Files.probeContentType(Path) is buggy on several OSes and a lot of bug reports have been filed. I have had a problem with software working on ubuntu but failing on windows. It seemed that on windows Files.probeContentType(Path) always returned null. It was not my system so I did...
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Detect browser or tab closing

... edited Apr 22 '14 at 9:17 sandip 3,12144 gold badges2626 silver badges5151 bronze badges answered Oct 8 '10 at 8:39 ...
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“for loop” with two variables? [duplicate]

...use: for i, j in zip(range(x), range(y)): # Stuff... Note that if x and y are not the same length, zip will truncate to the shortest list. As @abarnert pointed out, if you don't want to truncate to the shortest list, you could use itertools.zip_longest. UPDATE Based on the request for "a f...
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.gitignore exclude folder but include specific subfolder

...ing /* is significant: The pattern dir/ excludes a directory named dir and (implicitly) everything under it. With dir/, Git will never look at anything under dir, and thus will never apply any of the “un-exclude” patterns to anything under dir. The pattern dir/* says nothing about dir itself...