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How to mkdir only if a directory does not already exist?
...'t exist.
Some implementation like GNU mkdir include mkdir --parents as a more readable alias, but this is not specified in POSIX/Single Unix Specification and not available on many common platforms like macOS, various BSDs, and various commercial Unixes, so it should be avoided.
If you want an er...
Git Push ERROR: Repository not found
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jquery data selector
...:data(condition),a:data(orCondition)") ... it'll have the same effect. The more features you add, the slower it'll be. If the logic is complex, then use $(foo).filter(function(){...}).
– James
May 24 '10 at 12:21
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PHP: How to remove specific element from an array?
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Why doesn't Ruby support i++ or i-- (increment/decrement operators)?
...k this by calling i.object_id before and after i+=1. Why would that be any more technically tricky to do with ++?
– Andy_Vulhop
Sep 7 '10 at 17:09
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How to count total lines changed by a specific author in a Git repository?
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How to make a floated div 100% height of its parent?
...#inner base its height on that, make both elements absolutely positioned.
More details can be found in the spec for the css height property, but essentially, #inner must ignore #outer height if #outer's height is auto, unless #outer is positioned absolutely. Then #inner height will be 0, unless #i...
JavaScript variables declare outside or inside loop?
...uted at run-time. If a particular identifier has been declared var once or more anywhere in a function body(*), then all use of that identifier in the block will be referring to the local variable. It makes no difference whether value is declared to be var inside the loop, outside the loop, or both....
How can I select an element with multiple classes in jQuery?
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How do I generate a stream from a string?
...racters. It is crucial to understand that converting a character to one or more bytes (or to a Stream as in this case) always uses (or assumes) a particular encoding. This answer, while correct in some cases, uses the Default encoding, and may not be suitable in general. Explicitly passing an Encodi...