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Best way to give a variable a default value (simulate Perl ||, ||= )

... = $bar ?: $baz; Which assigns $bar if it's not an empty value (I don't know how this would be different in PHP from Perl), otherwise $baz, and is the same as this in Perl and older versions of PHP: $foo = $bar ? $bar : $baz; But PHP does not have a compound assignment operator for this (that i...
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Get position/offset of element relative to a parent container?

... I thought getBoundingClientsRect was widely supported... if anyone knows which mobiles do not support it I would be interested (can't find any support table for mobiles about it). – Nobita Jul 1 '14 at 11:54 ...
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What is the correct way to create a single-instance WPF application?

...s, it brings on a lot of overhead, and I wanted something cleaner. Knowing that I could use a mutex for this (but never having done it before) I set out to cut down my code and simplify my life. In the class of my application main I created a static named Mutex: static class Program ...
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What is the difference between `git fetch origin` and `git remote update origin`?

... @Jefromi: right... now I have to find a way to aggregate all the "what's cooking in Git" in order to see why commit 9c4a036b didn't make it in the official release before 1.7 ;) – VonC Apr 22 '10 at 5:38 ...
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Find method references in Xcode

...uess not, since in at least some cases the compiler won't have any way of knowing which implementation is to be called. – Mark Amery May 5 '15 at 23:51 ...
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How to change the default collation of a table?

... @JasomDotnet you should now use utf8mb4_unicode_ci stackoverflow.com/questions/766809/… – baptx Aug 7 '16 at 17:57 2 ...
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Git Bash is extremely slow on Windows 7 x64

... Didn't help me, but helped the export PS1='$' mentioned below. So I know for me the problem is the terminal line. – Koshmaar Feb 8 '16 at 10:52 ...
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Keep only date part when using pandas.to_datetime

...en I write the data to CSV, the dates are not appended with 00:00:00 . I know I can convert the type manually element-by-element: ...
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How to start jenkins on different port rather than 8080 using command prompt in Windows?

... It lefts old 8080 and now new 9090 both are working now – Ashish Kamble Dec 12 '18 at 7:43 ...
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How to stop Jenkins installed on Mac Snow Leopard?

I have installed Jenkins executable on OSX, but now I want to stop it running. Whenever I kill it, no matter how, it just restarts immediately. ...