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Are JavaScript strings immutable? Do I need a “string builder” in JavaScript?

Does javascript use immutable or mutable strings? Do I need a "string builder"? 10 Answers ...
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Search code inside a Github project

Is there a way to grep for something inside a Github project's code? 7 Answers 7 ...
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C/C++ Struct vs Class

After finishing my C++ class it seemed to me the structs/classes are virtually identical except with a few minor differences. ...
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\r\n, \r and \n what is the difference between them? [duplicate]

I need to ask about the difference in a string between \r\n , \r and \n . How is a string affected by each? 4 Answers ...
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Test for non-zero length string in Bash: [ -n “$var” ] or [ “$var” ]

I've seen Bash scripts test for a non-zero length string in two different ways. Most scripts use the -n option: 6 Answers...
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Reshape three column data frame to matrix (“long” to “wide” format) [duplicate]

I have a data.frame that looks like this. 6 Answers 6 ...
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Debugging Scala code with simple-build-tool (sbt) and IntelliJ

What's the easiest way to debug Scala code managed by sbt using IntelliJ's built-in debugger? The documentation from "RunningSbt" from sbt's google code site lists commands for running the main class for a project or the tests, but there seem to be no commands for debugging. ...
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Windows threading: _beginthread vs _beginthreadex vs CreateThread C++

What's a better way to start a thread, _beginthread , _beginthreadx or CreateThread ? 17 Answers ...
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How exactly does work?

I have a few <script> elements, and the code in some of them depend on code in other <script> elements. I saw the defer attribute can come in handy here as it allows code blocks to be postponed in execution. ...
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Counting the number of option tags in a select tag in jQuery

How do I count the number of <option> s in a <select> DOM element using jQuery? 8 Answers ...