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How to set UICollectionViewDelegateFlowLayout?

...and this will only work if self.collectionView.collectionViewLayout is actually set to your flow layout. (or set with initWithFrame:collectionViewLayout:) share | improve this answer | ...
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What is cURL in PHP?

...the PHP manual. In order to use PHP's cURL functions you need to install the » libcurl package. PHP requires that you use libcurl 7.0.2-beta or higher. In PHP 4.2.3, you will need libcurl version 7.9.0 or higher. From PHP 4.3.0, you will need a libcurl version that's 7.9.8 or higher. ...
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Recursion or Iteration?

...n if the recursive function is tail recursive (the last line is recursive call). Tail recursion should be recognized by the compiler and optimized to its iterative counterpart (while maintaining the concise, clear implementation you have in your code). I would write the algorithm in the way that m...
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What does the git index contain EXACTLY?

...ns an article on what an index includes: The index is a binary file (generally kept in .git/index) containing a sorted list of path names, each with permissions and the SHA1 of a blob object; git ls-files can show you the contents of the index: $ git ls-files --stage 100644 63c918c667fa005ff12ad89...
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Bash set +x without it being printed

...ution to this just recently when I became annoyed with it: shopt -s expand_aliases _xtrace() { case $1 in on) set -x ;; off) set +x ;; esac } alias xtrace='{ _xtrace $(cat); } 2>/dev/null <<<' This allows you to enable and disable xtrace as in the following, wh...
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Split list into multiple lists with fixed number of elements

...st[List[X]] = if (xs.size <= n) xs :: Nil else (xs.splitAt(n)._1) :: split(n,xs.splitAt(n)._2) share | improve this answer | follow | ...
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How can I check whether a radio button is selected with JavaScript?

... I don't really follow what you're saying? Are interested in whether or not ANY radio button is selected? – Mark Biek Sep 14 '09 at 20:41 ...
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Check play state of AVPlayer

Is there a way to know whether an AVPlayer playback has stalled or reached the end? 11 Answers ...
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Reading a binary file with python

...ve something to unpack is pretty trivial: import struct data = open("from_fortran.bin", "rb").read() (eight, N) = struct.unpack("@II", data) This unpacks the first two fields, assuming they start at the very beginning of the file (no padding or extraneous data), and also assuming native byte-or...
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What do the return values of node.js process.memoryUsage() stand for?

... Scheme first. A running program is always represented through some space allocated in memory. This space is called Resident Set. V8 uses a scheme similar to the Java Virtual Machine and divides the memory into segments: Code: the actual code being executed Stack: contains all value types (prim...