Is there a standard function to check for null, undefined, or blank variables in JavaScript?

javascriptnullcomparisonundefined
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Do a "git export" (like "svn export")?

gitexportgit-archivesvn-export
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How is Docker different from a virtual machine?

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How do I get started with Node.js [closed]

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How to put these images together?

imagematlabimage-processingmatlab-guide
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