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Invert “if” statement to reduce nesting

...cked this code from the refactoring catalog. This specific refactoring is called: Replace Nested Conditional with Guard Clauses. share | improve this answer | follow ...
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How To Save Canvas As An Image With canvas.toDataURL()?

I'm currently building a HTML5 web app/Phonegap native app and I can't seem to figure out how to save my canvas as an image with canvas.toDataURL() . Can somebody help me out? ...
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What does Ruby have that Python doesn't, and vice versa?

There is a lot of discussions of Python vs Ruby, and I all find them completely unhelpful, because they all turn around why feature X sucks in language Y, or that claim language Y doesn't have X, although in fact it does. I also know exactly why I prefer Python, but that's also subjective, and would...
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How to reshape data from long to wide format

... The reshape comments and similar argument names aren't all that helpful. However, I have found that for long to wide, you need to provide data = your data.frame, idvar = the variable that identifies your groups, v.names = the variables that will become multiple columns in wide f...
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How to fix a locale setting warning from Perl?

...cale failed. perl: warning: Please check that your locale settings: LC_ALL = (unset), LANG = "en_US.UTF-8" are supported and installed on your system. perl: warning: Falling back to the standard locale ("C"). My guess is you used ssh to connect to this older host from a newer desktop ma...
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REST APIs: custom HTTP headers vs URL parameters

...A mobile platform should almost always be the User himself acting, and use appropriate first person credentials for the transaction. – Nialscorva Feb 15 '12 at 0:08 8 ...
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Not showing placeholder for input type=“date” field

I am doing a phonegap app. When I am trying type="date" input field as shown below, it shows date picker in iPhone as I expected but it doesn't show the placeholder I have given. I found the same issue here in SO, but no solution anywhere. ...
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Refresh a page using JavaScript or HTML [duplicate]

... no, i did not test them all – epoch Jan 10 '14 at 8:06 13 ...
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Getting Java version at runtime

... Wow, that kind of blew my mind. Though in my case, all I wanted was the first two parts of the version so: Runtime.class.getPackage().getSpecificationVersion() – Wesley Hartford Dec 10 '14 at 21:44 ...
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Which is generally best to use — StringComparison.OrdinalIgnoreCase or StringComparison.InvariantCul

...onsider using a new set of String overloads in Microsoft .NET 2.0. Specifically, data that is designed to be culture-agnostic and linguistically irrelevant should begin specifying overloads using either the StringComparison.Ordinal or StringComparison.OrdinalIgnoreCase members of the new StringCompa...