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Binding arrow keys in JS/jQuery

... document.onkeydown = function(e) { switch(e.which) { case 37: // left break; case 38: // up break; case 39: // right break; case 40: // down break; default: return; // exit this handler for other keys } e.pr...
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Continuously read from STDOUT of external process in Ruby

...create a script, random.rb, with the following line: 5.times { |i| sleep( 3*rand ); puts "#{i}" } Then a ruby script to call it and return its output: IO.popen( "ruby random.rb") do |random| random.each { |line| puts line } end You'll see that you don't get the result in real-time as you mig...
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How to use 'find' to search for files created on a specific date? [closed]

... 328 As pointed out by Max, you can't, but checking files modified or accessed is not all that hard...
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Twitter Bootstrap 3: how to use media queries?

I'm using Bootstrap 3 to build a responsive layout where I want to adjust a few font sizes according to the screen size. How can I use media queries to make this kind of logic? ...
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How to understand nil vs. empty vs. blank in Ruby

... | edited Oct 6 '15 at 11:39 alhimik45 7411 silver badge99 bronze badges answered May 20 '09 at 16:14 ...
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How do I use extern to share variables between source files?

...of doing it, this method is simple and reliable. It is demonstrated by file3.h, file1.c and file2.c: file3.h extern int global_variable; /* Declaration of the variable */ file1.c #include "file3.h" /* Declaration made available here */ #include "prog1.h" /* Function declarations */ /* Variable ...
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How to validate phone numbers using regex

... 523 Better option... just strip all non-digit characters on input (except 'x' and leading '+' signs)...
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What's the difference between a temp table and table variable in SQL Server?

... 393 There are a few differences between Temporary Tables (#tmp) and Table Variables (@tmp), althou...
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Getting a list of values from a list of dicts

... 340 Assuming every dict has a value key, you can write (assuming your list is named l) [d['value'...
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jQuery removeClass wildcard

... | edited Jan 11 '17 at 13:00 Áxel Costas Pena 4,12455 gold badges2424 silver badges5353 bronze badges ...