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What does ~~ (“double tilde”) do in Javascript?
...nverts a string to a number in a round-about way.
See this thread: http://www.sitepoint.com/forums/showthread.php?t=663275
Also, more detailed info is available here: http://dreaminginjavascript.wordpress.com/2008/07/04/28/
...
How to check if a URL is valid
...ror
false
end
end
Now you can do something like:
if "http://www.omg.wtf".is_valid_url?
p "huzzah!"
end
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Android adb not found
...tart the configuration of the ADT tools in eclipse? I am running Ubuntu 12.04
– CodeKingPlusPlus
Jan 20 '13 at 15:51
...
How to export query result to csv in Oracle SQL Developer?
...y
Right click and select unload.
Update. In Sql Developer Version 3.0.04 unload has been changed to export
Thanks to Janis Peisenieks for pointing this out
Revised screen shot for SQL Developer Version 3.0.04
From the format drop down select CSV
And follow the rest of the on screen i...
PHP memory profiling
...2.* version. Please search for the "removed functions" string here: http://www.xdebug.org/updates.php
Removed functions
Removed support for Memory profiling as that didn't work properly.
So I've tried another tool and it worked well for me.
https://github.com/arnaud-lb/php-memory-profiler
This is ...
How to find time complexity of an algorithm
...
This is an excellent article :
http://www.daniweb.com/software-development/computer-science/threads/13488/time-complexity-of-algorithm
The below answer is copied from above (in case the excellent link goes bust)
The most common metric for calculating time compl...
postgres: upgrade a user to be a superuser?
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How do I join two paths in C#?
...th=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 47.1084 7.58816C47.4091 7.46349 47.7169 7.36433 48.0099 7.26993C48.9099 6.97997 49.672 6.73443 49.672 5.93063C49.672 5.22043 48.9832 4...
How to exclude certain directories/files from git grep search
...ing, so this is loosely based on:
# http://www.linuxjournal.com/content/bash-preserving-whitespace-using-set-and-eval
x=1
items= ...
When to use next() and return next() in Node.js
...th=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 47.1084 7.58816C47.4091 7.46349 47.7169 7.36433 48.0099 7.26993C48.9099 6.97997 49.672 6.73443 49.672 5.93063C49.672 5.22043 48.9832 4...