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Proper use of beginBackgroundTaskWithExpirationHandler
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answered May 22 '16 at 7:01
vomakovomako
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What are some better ways to avoid the do-while(0); hack in C++?
...ailed (as opposed to jumping/breaking out)... but I just ran a test and VS2012 at least was smart enough to short-circuit everything after the first false anyway. I'll be using this more often. note: if you use goOn &= checkN() then checkN() will always run even if goOn was false at the start ...
What is the most compatible way to install python modules on a Mac?
...et pip.
– zlovelady
Mar 8 '11 at 22:01
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What does Redis do when it runs out of memory?
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BMinerBMiner
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Understanding Python's “is” operator
... you'll see that x and y have different identifiers:
>>> id(x)
4401064560
>>> id(y)
4401098192
but if you were to assign y to x then both point to the same object:
>>> x = y
>>> id(x)
4401064560
>>> id(y)
4401064560
>>> x is y
True
and is s...
New Array from Index Range Swift
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answered Jun 4 '14 at 10:01
Cezary WojcikCezary Wojcik
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Replace a value if null or undefined in JavaScript
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GumboGumbo
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How can I hash a password in Java?
...s https://github.com/wg/scrypt
// cf. http://www.unlimitednovelty.com/2012/03/dont-use-bcrypt.html
private static String hash(String password, byte[] salt) throws Exception {
if (password == null || password.length() == 0)
throw new IllegalArgumentException("Empty passwor...
Does “display:none” prevent an image from loading?
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Even today (oct 2017), the most common browser Chrome will download all 'img' element sources, even if they're hidden. It won't download hidden background images.
– TKoL
Oct 23 '17 at 15:04
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Mockito: Stubbing Methods That Return Type With Bounded Wild-Cards
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answered Oct 5 '11 at 1:01
millhousemillhouse
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