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How do you round a float to two decimal places in jruby
...es anyway. sprintf can format any number almost any way you like, and lots more.
Full sprintf documentation: http://www.ruby-doc.org/core-2.0.0/Kernel.html#method-i-sprintf
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When is it acceptable to call GC.Collect?
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How do I get the number of elements in a list?
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I explain why here but in short, if items or if not items is both more readable and more performant.
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What is the difference between --save and --save-dev?
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Why are Perl 5's function prototypes bad?
...wn syntactic sugar. For example the Moose framework uses them to emulate a more typical OO syntax.
This is very useful but prototypes are very limited:
They have to be visible at compile-time.
They can be bypassed.
Propagating context to arguments can cause unexpected behavior.
They can make it d...
One-liner to check whether an iterator yields at least one element?
...ver, it would help to know what the OP is trying to do? There's probably a more elegant solution (this IS Python, after all).
– rossipedia
Jun 24 '10 at 22:59
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Flags to enable thorough and verbose g++ warnings
...t. I suspect
that code that triggers this warning could benefit from being more
modular, regardless, so although the code is not technically wrong
(probably), stylistically it likely is.
-Wfloat-equal warns for safe equality comparisons (in particular,
comparison with a non-computed value of -1). An...
How to use localization in C#
... which is the one that we added from the start.
You can create files with more specific resources if needed (for instance strings.fr-FR.resx and strings.fr-CA.resx for French in France and Canada respectively). In each such file you will need to add the resources for those strings that differ from ...
How do I completely uninstall Node.js, and reinstall from beginning (Mac OS X)
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How can I split a string into segments of n characters?
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console.log("abcd".match(/.{1,3}/g)); // ["abc", "d"]
A couple more subtleties:
If your string may contain newlines (which you want to count as a character rather than splitting the string), then the . won't capture those. Use /[\s\S]{1,3}/ instead. (Thanks @Mike).
If your string is em...