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Convert a series of parent-child relationships into a hierarchical tree?

... ) ) ) ) ) ) If you want a bit more efficiency, you can combine those functions into one and reduce the number of iterations made: function parseAndPrintTree($root, $tree) { $return = array(); if(!is_null($tree) && count($tree) > 0) { ...
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Elegant way to invert a map in Scala

... .map(_._1) would be more legibile as just .keys – cheezsteak Feb 12 '16 at 18:13 ...
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Java: Clear the console

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How to force push a reset to remote repository?

...ack on. It is unlikely most are in a position to do this though. It may be more common in an internal environment with your own hosting team. – Elijah Lynn Apr 18 '17 at 16:11 ...
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How do I make an HTML text box show a hint when empty?

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What difference between Jersey vs jax-rs

... Straight from the jersey site Jersey framework is more than the JAX-RS Reference Implementation. Jersey provides its own API that extend the JAX-RS toolkit with additional features and utilities to further simplify RESTful service and client development. Jersey also ex...
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How do I get the full path of the current file's directory?

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Splitting a list into N parts of approximately equal length

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Add an already existing directory to a directory in Solution Explorer

...n the filesystem and you want to add it to your project (as this is stated more simply in the comments above).. just open up the file explorer (like normal.. open folder in Windows) and the drag the folder and drop it on the desired folder in your solution explorer pane.. job done! I just did this a...
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Determine if Android app is being used for the first time

... service.checkAppStart(newVersion, oldVersion)); } With a bit more effort you could probably test the android related stuff (PackageManager and SharedPreferences) as well. Anyone interested in writing the test? :) Note that the above code will only work properly if you don't mess aroun...