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Detect URLs in text with JavaScript
... a valid URL. There
are some punctuation rules for
splitting it up. Absent any
punctuation, you still have a valid
URL.
Check the RFC carefully and see if you
can construct an "invalid" URL. The
rules are very flexible.
For example ::::: is a valid URL.
The path is ":::...
How to HTML encode/escape a string? Is there a built-in?
...cape the chars ' < ' and ' & ' as HTML entities. The less fuss the better.
8 Answers
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Can Powershell Run Commands in Parallel?
I have a powershell script to do some batch processing on a bunch of images and I'd like to do some parallel processing. Powershell seems to have some background processing options such as start-job, wait-job, etc, but the only good resource I found for doing parallel work was writing the text of a...
PostgreSQL Crosstab Query
Does any one know how to create crosstab queries in PostgreSQL?
For example I have the following table:
6 Answers
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Where is the syntax for TypeScript comments documented?
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The right syntax is now the one used by TSDoc. It will allow you to have your comments understood by Visual Studio Code or other documentation tools.
A good overview of the syntax is available here and especially here. The precise spec should be "soon" written ...
What are inline namespaces for?
C++11 allows inline namespace s, all members of which are also automatically in the enclosing namespace . I cannot think of any useful application of this -- can somebody please give a brief, succinct example of a situation where an inline namespace is needed and where it is the most idiomatic s...
How to display string that contains HTML in twig template?
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Use raw keyword, http://twig.sensiolabs.org/doc/api.html#escaper-extension
{{ word | raw }}
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Nested defaultdict of defaultdict
Is there a way to make a defaultdict also be the default for the defaultdict? (i.e. infinite-level recursive defaultdict?)
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Changing CSS Values with Javascript
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Ok, it sounds like you want to change the global CSS so which will effictively change all elements of a peticular style at once. I've recently learned how to do this myself from a Shawn Olson tutorial. You can directly reference his code here.
Here is the summary:
Y...
Convert audio files to mp3 using ffmpeg
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You could use this command:
ffmpeg -i input.wav -vn -ar 44100 -ac 2 -b:a 192k output.mp3
Explanation of the used arguments in this example:
-i - input file
-vn - Disable video, to make sure no video (including album cover image) is included if the source would be a video file
-ar - Set the...