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Is Javascript a Functional Programming Language?

Just because functions are first class objects, there are closures, and higher order functions, does Javascript deserve to be called a Functional Programming language? The main thing I think it lacks is Pure Functions, and it doesn't 'feel' like other functional languages, like lisp (although thats...
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What's a concise way to check that environment variables are set in a Unix shell script?

...(an empty string) is OK — not exactly what you want, but the alternative and older notation. The second variant (using :?) requires DEST to be set and non-empty. If you supply no message, the shell provides a default message. The ${var?} construct is portable back to Version 7 UNIX and the Bourne ...
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Splitting templated C++ classes into .hpp/.cpp files--is it possible?

...ors trying to compile a C++ template class which is split between a .hpp and .cpp file: 16 Answers ...
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How do I create a custom iOS view class and instantiate multiple copies of it (in IB)?

...mer in IB simply drag out a UIView drop it on your view controller's view, and set it's class to your timer's class name. Remember to #import your timer class in your view controller. Edit: for IB design (for code instantiation see revision history) I'm not very familiar at all with storyboard,...
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ETag vs Header Expires

...d around but haven't been able to figure out if I should use both an ETag and an Expires Header or one or the other. 8 ...
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How do I get the type of a variable?

...ns integer on your compiler. The names returned are not specified by the standard. – Bo Persson Jul 3 '12 at 12:59 12 ...
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System.Timers.Timer vs System.Threading.Timer

I have been checking out some of the possible timers lately, and System.Threading.Timer and System.Timers.Timer are the ones that look needful to me (since they support thread pooling). ...
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C# delete a folder and all files and folders within that folder

I'm trying to delete a folder and all files and folders within that folder, I'm using the code below and I get the error Folder is not empty , any suggestions on what I can do? ...
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R.exe, Rcmd.exe, Rscript.exe and Rterm.exe: what's the difference?

...ce between R.exe (with or without CMD BATCH option), Rcmd.exe, Rscript.exe and Rterm.exe when running command line in a batch file? ...
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Why do Chrome and IE put “Mozilla 5.0” in the User-Agent they send to the server? [duplicate]

... See: user-agent-string-history It all goes back to browser sniffing and making sure that the browsers are not blocked from getting content they can support. From the above article: And Internet Explorer supported frames, and yet was not Mozilla, and so was not given frames. And Microsoft ...