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Check if inputs are empty using jQuery

...ing'); } }); If you're sure it will always operate on a textfield element then you can just use this.value. $('#apply-form input').blur(function() { if( !this.value ) { $(this).parents('p').addClass('warning'); } }); Also you should take note that $('input:text') gra...
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Make a float only show two decimal places

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How to remove all characters after a specific character in python?

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Use PPK file in Mac Terminal to connect to remote connection over SSH [closed]

... What does this error mean when I try to run the puttygen command? Enter passphrase to load key: Assertion failed: (random_active), function random_byte, file ./../sshrand.c, line 313. Abort trap: 6 – fastasleep ...
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How to convert a char array to a string?

... It would still work either way. The overloaded assignment operator takes a const char*, so you can pass it a string literal or char array (which decays to that). – Mysticial Jan 22 '12 at 9:19 ...
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How to convert a string to utf-8 in Python

... unicode. The unicode function does not exist anymore. See answer from @Noumenon share | improve this answer | follow | ...
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Kill a postgresql session/connection

... superuser to use this function. This works on all operating systems the same. SELECT pg_terminate_backend(pid) FROM pg_stat_activity WHERE -- don't kill my own connection! pid <> pg_backend_pid() -- don't kill the connections to other databases AND datname = 'da...
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Access POST values in Symfony2 request object

... this solution is deprecated since 2.3 and will be removed in 3.0, see documentation $form->getData(); gives you an array for the form parameters from symfony2 book page 162 (Chapter 12: Forms) [...] sometimes, you may just want to use a form without a class, and get back an array of the submitt...
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delete word after or around cursor in VIM

...cutes one command in Normal mode and jumps straight back into Insert, so something like imap <C-d> <C-o>diw works too. It also doesn't create an undo point, which <Esc> pretty much always does. – zelk May 17 '12 at 10:34 ...
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How can I get the iOS 7 default blue color programmatically?

I'm creating custom elements in my app and want to match the look and feel of the new iOS. iOS 7 introduced to us a very common lighter blue color, the default color or tint for several elements, including the system button, segmented control, etc. They've made it easy to select the color using IB, ...