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What limits does scala place on the “acceptable complexity” of inferred types?
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Get the current first responder without using a private API
...ends it to the first responder.
(I originally published this answer here: https://stackoverflow.com/a/14135456/322427)
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Do Java arrays have a maximum size?
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Going by this article http://en.wikipedia.org/wiki/Criticism_of_Java#Large_arrays:
Java has been criticized for not supporting arrays of more than 231−1 (about 2.1 billion) elements. This is a limitation of the language; the Java Language Sp...
Why are Python lambdas useful? [closed]
... for more of a history about the deal behind Python's functional features:
http://python-history.blogspot.com/2009/04/origins-of-pythons-functional-features.html
Curiously, the map, filter, and reduce functions that originally motivated the introduction of lambda and other functional features ha...
Check play state of AVPlayer
...
For Swift:
AVPlayer:
let player = AVPlayer(URL: NSURL(string: "http://www.sample.com/movie.mov"))
if (player.rate != 0 && player.error == nil) {
println("playing")
}
Update:
player.rate > 0 condition changed to player.rate != 0 because if video is playing in reverse it c...
Why do browsers match CSS selectors from right to left?
...of most of the candidate selectors very quickly. You can see some data at http://groups.google.com/group/mozilla.dev.tech.layout/browse_thread/thread/b185e455a0b3562a/7db34de545c17665 (though the notation is confusing), but the upshot is that for Gmail in particular two years ago, for 70% of the (r...
grep without showing path/file:line
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android.content.res.Resources$NotFoundException: String resource ID #0x0
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How do you iterate through every file/directory recursively in standard C++?
...g the Win32 API you can use the FindFirstFile and FindNextFile functions.
http://msdn.microsoft.com/en-us/library/aa365200(VS.85).aspx
For recursive traversal of directories you must inspect each WIN32_FIND_DATA.dwFileAttributes to check if the FILE_ATTRIBUTE_DIRECTORY bit is set. If the bit is se...
Read password from stdin
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