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Replace all non-alphanumeric characters in a string
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Use \W which is equivalent to [^a-zA-Z0-9_]. Check the documentation, https://docs.python.org/2/library/re.html
Import re
s = 'h^&ell`.,|o w]{+orld'
replaced_string = re.sub(r'\W+', '*', s)
output: 'h*ell*o*w*orld'
update: This solution will exclude underscore as well. If you want only ...
Good ways to sort a queryset? - Django
...jango 1.4 and newer you can order by providing multiple fields.
Reference: https://docs.djangoproject.com/en/dev/ref/models/querysets/#order-by
order_by(*fields)
By default, results returned by a QuerySet are ordered by the ordering tuple given by the ordering option in the model’s Meta. You can...
TCP loopback connection vs Unix Domain Socket performance
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This benchmark: https://github.com/rigtorp/ipc-bench
provides latency and throughput tests for TCP sockets, Unix Domain Sockets (UDS), and PIPEs.
Here you have the results on a single CPU 3.3GHz Linux machine :
TCP average latency: 6 us
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Can I draw rectangle in XML?
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"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 4...
Replace first occurrence of string in Python
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Javadoc link to method in other class
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How can I rethrow an exception in Javascript, but preserve the stack?
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wait() or sleep() function in jquery?
...t I wrote a plugin to address this issue that someone might find useful.
https://github.com/madbook/jquery.wait
lets you do this:
$('#myElement').addClass('load').wait(2000).addClass('done');
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How do I use the new computeIfAbsent function?
...).add("John");
Stuart Marks & Brian Goetz did a good talk about this
https://www.youtube.com/watch?v=9uTVXxJjuco
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How to install grunt and how to build script with it
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To do so, please follow these steps:
npm install -g grunt-init
git clone https://github.com/gruntjs/grunt-init-gruntfile.git ~/.grunt-init/gruntfile
grunt-init gruntfile
For Windows users: If you are using cmd.exe you need to change ~/.grunt-init/gruntfile to %USERPROFILE%\.grunt-init\. PowerShe...