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How does lock work exactly?
...n the way you lock. You can find a good list of optimizations here: http://www.thinkingparallel.com/2007/07/31/10-ways-to-reduce-lock-contention-in-threaded-programs/
Basically you should try to lock as little as possible, since it puts your waiting code to sleep. If you have some heavy calculation...
case-insensitive list sorting, without lowercasing the result?
... a Unicode string to a string in Python (containing extra symbols)
https://www.programiz.com/python-programming/list-comprehension
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Why does SIGPIPE exist?
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https://www.gnu.org/software/libc/manual/html_mono/libc.html
This link says:
A pipe or FIFO has to be open at both ends simultaneously. If you read from a pipe or FIFO file that doesn't have any processes writing to it (perhaps bec...
How to substring in jquery
...me = "nameGorge";
var output = name.substring(4);
Read more here: http://www.w3schools.com/jsref/jsref_substring.asp
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HTML5 Email Validation
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The input type=email page of the www.w3.org site notes that an email address is any string which matches the following regular expression:
/^[a-zA-Z0-9.!#$%&’*+/=?^_`{|}~-]+@[a-zA-Z0-9-]+(?:\.[a-zA-Z0-9-]+)*$/
Use the required attribute and a patter...
SVN checkout ignore folder
...folder for exclusion then delete the unwanted folder.
svn checkout http://www.example.com/project
cd project
svn update --set-depth=exclude docs
rm -fr docs
From now on any updates to the working copy won't repopulate the docs folder.
See http://blogs.collab.net/subversion/2009/03/sparse-directo...
Fade Effect on Link Hover?
on many sites, such as http://www.clearleft.com , you'll notice that when the links are hovered over, they will fade into a different color as opposed to immediately switching, the default action.
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How does one get started with procedural generation?
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There is an excellent book about the topic:
http://www.amazon.com/Texturing-Modeling-Third-Procedural-Approach/dp/1558608486
It is biased toward non-real-time visual effects and animation generation, but the theory and ideas are usable outside of these fields, I suppose.
It...
How do I pass parameters into a PHP script through a webpage?
...'re passing the arguments in on the command line as follows:
php /path/to/wwwpublic/path/to/script.php arg1 arg2
... and then accessing them in the script thusly:
<?php
// $argv[0] is '/path/to/wwwpublic/path/to/script.php'
$argument1 = $argv[1];
$argument2 = $argv[2];
?>
What you need t...
Getting one value from a tuple
...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...