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What are file descriptors, explained in simple terms?

...ened file within a process. File descriptor 0, for example, will represent one opened file in one process and a completely different opened file in another process. – Keith Thompson Jan 7 '16 at 22:04 ...
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How to use the pass statement?

...ave out the pass, the code wouldn't run. You would then get an: IndentationError: expected an indented block To summarize, the pass statement does nothing particular, but it can act as a placeholder, as demonstrated here. ...
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Test if string is a guid without throwing exceptions?

... One even faster way is by using Guid.TryParseExact() method. – user586254 Mar 30 '11 at 8:34 4 ...
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Is there an equivalent to background-size: cover and contain for image elements?

...eight: 100%; for portrait use max-width: 100%. Would be nice if there were one solution that worked for either landscape or portrait. Any ideas? This is the best cross-browser solution I've seen so far. – terraling Jul 20 '15 at 17:12 ...
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Remove all but numbers from NSString

I have an NSString (phone number) with some parenthesis and hyphens as some phone numbers are formatted. How would I remove all characters except numbers from the string? ...
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What's the Hi/Lo algorithm?

...@Adam: Fundamentally, nothing - it's just potentially cheaper to increment one value (the "high" part) than to generate a bunch of keys. (It's potentially much cheaper in terms of data transfer - you can "reserve" a huge number of keys with minimal bandwidth.) – Jon Skeet ...
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How does the SQL injection from the “Bobby Tables” XKCD comic work?

...dd a new record...") will fail because Students expects more than just the one column (the original/correct statement provided two columns). That said, the presence of the second column is helpful to show why commenting is required; and since one cannot change Bobby's name, it's probably best leavi...
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What is the performance cost of having a virtual method in a C++ class?

Having at least one virtual method in a C++ class (or any of its parent classes) means that the class will have a virtual table, and every instance will have a virtual pointer. ...
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maximum value of int

... Hopefully this helps someone, because it was a CLion IDE bug that I fixed by using the latest CLion (build 138.2344 - CLion is in the Early Access Program phase, and thus unstable) – modulitos Oct 10 '14 at 20:3...
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How to dynamically insert a tag via jQuery after page load?

...les from other domains, not just your own. – EleventyOne Aug 31 '13 at 19:46 ...