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Difference between Select and ConvertAll in C#

..., use ConvertAll. If performance is not a concern, use Select as it's more idiomatic in the language and tells future readers performance was not a concern. – Durdsoft Mar 20 at 23:23 ...
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How to check if std::map contains a key without doing insert?

... No, the premature optimization argument is only valid if the optimization takes some effort which in this case it does not. – markh44 Nov 10 '11 at 10:21 13...
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Remove non-numeric characters (except periods and commas) from a string

... @billrichards As the OP stated (emphasis mine), "avoid alphabets or characters except comma and dot". – John Parker Mar 31 '14 at 15:42 ...
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How to write asynchronous functions for Node.js

... blocking IO is better. The best way to understand it is to go watch some videos by ryan dahl. How do I write asynchronous functions for Node? Just write normal functions, the only difference is that they are not executed immediately but passed around as callbacks. How should I implement e...
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Why doesn't Haskell's Prelude.read return a Maybe?

... If @augustss can't provide it, a better answer may not exist. – John L Nov 9 '11 at 23:29 2 ...
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Naming convention for Scala constants?

...y) is the first style, camel case with first letter are upper case. It's laid down clearly by Odersky on Programming in Scala. The style is also followed by the standard library, and has some support in language semantics: identifiers starting with upper case are treated as constants in pattern mat...
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instantiate a class from a variable in PHP?

...tantiating a class from another namespace would be huge headache. Also consider that variables can be passed around. When the classname is written as text into a php file, whoever writes it knows exactly what namespace it is written in. But when a variable is passed between functions, it'd be a nigh...
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printf format specifiers for uint32_t and size_t

... @alcor yes he did put C89 (apparently the gcc compiler flag he's using) but he is using uint32_t so actually it is C99 code, and should be compiled as such. – Colin D Bennett Oct 24 '13 at 16:32 ...
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how to File.listFiles in alphabetical order?

... This is one beautiful line of code, but Arrays.sort() seems to return void, instead of an Iterable. I'll poke around a bit. – Thunder Rabbit Aug 26 '11 at 4:17 3 ...
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Why {} + {} is NaN only on the client side? Why not in Node.js?

...e.js's source justifies this: // This catches '{a : 1}' properly. Node did not always act like this. Here is the actual commit that changed it. Ryan left the following comment on the change: "Improve how REPL commands are evaled" with an example of the difference. Rhino Update - OP was intere...