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How to validate an email address in JavaScript

...b"@gmail.com, _@gmail.com, 1@gmail.com , 1_example@something.gmail.com are all valid, but Gmail will never allow any of these email addresses. You should do this by accepting the email address and sending an email message to that email address, with a code/link the user must visit to confirm validit...
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python multithreading wait till all threads finished

...oin method of Thread object in the end of the script. t1 = Thread(target=call_script, args=(scriptA + argumentsA)) t2 = Thread(target=call_script, args=(scriptA + argumentsB)) t3 = Thread(target=call_script, args=(scriptA + argumentsC)) t1.start() t2.start() t3.start() t1.join() t2.join() t3.join...
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Function return value in PowerShell

... PowerShell has really wacky return semantics - at least when viewed from a more traditional programming perspective. There are two main ideas to wrap your head around: All output is captured, and returned The return keyword really just indi...
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Python nested functions variable scoping [duplicate]

I've read almost all the other questions about the topic, but my code still doesn't work. 10 Answers ...
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Using tags to turn off caching in all browsers? [duplicate]

...ect information! See answer here: How to control web page caching, across all browsers? For IE9 and before Do not blindly copy paste this! The list is just examples of different techniques, it's not for direct insertion. If copied, the second would overwrite the first and the fourth wo...
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Javascript equivalent of Python's zip function

..., unlike Python's version where the argument list is variadic. If you want all of these "features", see below. It takes just about 2 extra lines of code. The following will mimic Python's zip behavior on edge cases where the arrays are not of equal size, silently pretending the longer parts of arra...
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How should I call 3 functions in order to execute them one after the other?

If I need call this functions one after other, 11 Answers 11 ...
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DISABLE the Horizontal Scroll [closed]

... In Chrome 34 this doesn't really prevent scrolling. It hides the scrollbar, but with middle-button scrolling I can still see the hidden elements on the left. – gphilip Apr 24 '14 at 10:33 ...
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How are 3D games so efficient? [closed]

...dware. For instance, one easy optimization you can make involves not actually trying to draw things that can't be seen. Consider a complex scene like a cityscape from Grand Theft Auto IV. The renderer isn't actually rendering all of the buildings and structures. Instead, it's rendering only what t...
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Adding git branch on the Bash command prompt

... git 1.9.3 or later: use __git_ps1 Git provides a shell script called git-prompt.sh, which includes a function __git_ps1 that prints text to add to bash PS1 prompt (includes branch name) Its most basic usage is: $ __git_ps1 (master) It also takes an optional format string: $ __g...