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Replace all non-alphanumeric characters in a string
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186
Regex to the rescue!
import re
s = re.sub('[^0-9a-zA-Z]+', '*', s)
Example:
>>> re...
Export database schema into SQL file
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Taryn♦Taryn
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How to convert a SVG to a PNG with ImageMagick?
I have a SVG file that has a defined size of 16x16. When I use ImageMagick's convert program to convert it into a PNG, then I get a 16x16 pixel PNG which is way too small:
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How to parse the AndroidManifest.xml file inside an .apk package
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TemplateDoesNotExist - Django Error
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286
Make sure you have rest_framework listed in your settings.py INSTALLED_APPS.
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Embedding DLLs in a compiled executable
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How to mock ConfigurationManager.AppSettings with moq
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answered Feb 28 '12 at 16:54
Joshua EnfieldJoshua Enfield
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parsing JSONP $http.jsonp() response in angular.js
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UPDATE: since Angular 1.6
You can no longer use the JSON_CALLBACK string as a placeholder for
specifying where the callback parameter value should go
You must now define the callback like so:
$http.jsonp('some/trusted/url', {jsonpCallbackP...
Why 0 is true but false is 1 in the shell?
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answered May 29 '10 at 4:56
Carl NorumCarl Norum
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How to map and remove nil values in Ruby
...[1, 2, 5, 8, 10, 13]
enum.filter_map { |i| i * 2 if i.even? }
# => [4, 16, 20]
In your case, as the block evaluates to falsey, simply:
items.filter_map { |x| process_x url }
"Ruby 2.7 adds Enumerable#filter_map" is a good read on the subject, with some performance benchmarks against some of ...