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Why there is no ConcurrentHashSet against ConcurrentHashMap
...ation the whole collection. But ConcurrentHashMap is implemented using non-blocking algorithms and "low-level" synchronisations without any locks of the whole collection. So wrapers from Collections.synchronized... is worse in multi-threads environments for performance reasons.
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How can I strip first and last double quotes?
...emoved independently, that solution becomes a 4-statements, 2-conditionals block -- now that's overkill compared to a single, faster expression for the same job!-)
– Alex Martelli
Jun 21 '10 at 16:51
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How to use a keypress event in AngularJS?
...he event is received the supplied expression is evaluated inside an $apply block.
– Pete Martin
Dec 10 '13 at 2:24
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What is the motivation for bringing Symbols to ES6?
...The mechanism doesn't have to be reflection - C++, Java, C#, Ruby, Python, PHP, Objective-C all allow access one way or another if one really wants to. It's not really about ability but communication.
– Esailija
May 14 '14 at 15:48
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Why is printing “B” dramatically slower than printing “#”?
... wordwrapping; the thing it was outputting to was doing word-wrapping (and blocking, so System.out.println had to wait).
– T.J. Crowder
Feb 26 '14 at 22:11
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Detect viewport orientation, if orientation is Portrait display alert message advising user of instr
... No, he wants to display a message, you can use display:none then display:block to display something.
– Thomas Decaux
Feb 12 '14 at 17:45
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Rotation methods deprecated, equivalent of 'didRotateFromInterfaceOrientation'?
... there are a number of clean up tasks we need to perform and I can't see a block that we can assign to UIViewControllerTransitionCoordinator in order to be called when 'transition' to a new size finishes. Thanks.
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ASP.NET Web Site or ASP.NET Web Application?
...piled base class if you want to. There are many languages/frameworks (e.g. PHP) where people are used to the idea of deploying source code. That doesn't mean those are not 'serious' applications.
– Max Toro
Aug 25 '09 at 20:29
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How to write a cron that will run a script every day at midnight?
...ub application records
00 23 * * * someuser /opt/myapp/bin/scrubrecords.php
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What is the use of “ref” for reference-type variables in C#?
...rence to allocate memory for a new class and have it
persist outside the block. To do that, pass the parameter using the
ref or out keyword.
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