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java.util.regex - importance of Pattern.compile()?

... The compile() method is always called at some point; it's the only way to create a Pattern object. So the question is really, why should you call it explicitly? One reason is that you need a reference to the Matcher object so you can use its methods, like...
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ExecJS::RuntimeError on Windows trying to follow rubytutorial

...e on your system and removing this line is just ignoring that fact. 2) Installing Node.js / Running away - Many people seem to just end up installing Node.js and using that instead of the JavaScript runtime already on their system. While that is a valid option, it also requires additional software...
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Proper way to add svn:executable

... Sorry for all the edits, but if I recall correctly, having it set to anything will turn on the executable bit, deleting it (and possibly setting it to null or whitespace) will turn it off. To get the value your SVN client was using, a...
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How do I select child elements of any depth using XPath?

Suppose I have this (simplified): 4 Answers 4 ...
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Why rename synthesized properties in iOS with leading underscores? [duplicate]

...s is an artifact of a previous version of the Objective-C runtime. Originally, @synthesize was used to create accessors methods, but the runtime still required that instance variables had to be instantiated explicitly: @interface Foo : Bar { Baz *_qux; } @property (retain) Baz *qux; @end @imp...
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How to paste over without overwriting register

Does anyone know of a way to paste over a visually selected area without having the selection placed in the default register? ...
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how do I use the grep --include option for multiple file types?

When I want to grep all the html files in some directory, I do the following 7 Answers ...
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How to recursively list all the files in a directory in C#?

How to recursively list all the files in a directory and child directories in C#? 22 Answers ...
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Dynamic variable names in Bash

...Fgilrtux] [-p] [name[=value] ...]. You might double-check that you are actually running 4.x and not 3.2. – chepner Dec 2 '13 at 16:08 5 ...
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Labels for radio buttons in rails form

My question is similar to this one but for a Rails app. 5 Answers 5 ...