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How efficient is locking an unlocked mutex? What is the cost of a mutex?

... 123 I have the choice in between either having a bunch of mutexes or a single one for an object. ...
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How to convert an Array to a Set in Java

... | edited Apr 30 '19 at 2:51 answered Jun 17 '10 at 18:27 ...
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What does functools.wraps do?

... | edited Feb 14 at 4:13 Jens 5,92855 gold badges4444 silver badges6262 bronze badges answered Nov 21...
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force Maven to copy dependencies into target/lib

...Georgy Bolyuba 7,70577 gold badges2626 silver badges3434 bronze badges 11 ...
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MySQL error 1449: The user specified as a definer does not exist

... 36 Answers 36 Active ...
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Viewing full output of PS command

...ce.Paused until further notice. 286k8181 gold badges340340 silver badges409409 bronze badges 21 ...
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Alternate table row color using CSS?

...ckground-color":"#000", "color":"#fff"}); }); tbody td{ padding: 30px; } tbody tr:nth-child(odd){ background-color: #4C8BF5; color: #fff; } <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <table border="1"> <tbody&...
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Convert an ISO date to the date format yyyy-mm-dd in JavaScript

... 103 Try this date = new Date('2013-03-10T02:00:00Z'); date.getFullYear()+'-' + (date.getMonth()+1) ...
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Execute PowerShell Script from C# with Commandline Arguments

... Kosi2801Kosi2801 19.3k1111 gold badges3232 silver badges4141 bronze badges ...
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How do I remove the first characters of a specific column in a table?

... in a table? Column name is Student Code and an example value is ABCD123Stu1231 . I want to remove first 4 chars from my table for all records ...