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Determine if string is in list in JavaScript
...}
// Result:
0
1
2
blah // Extra member iterated over!
Your code may work now, but the moment someone in the future adds a third-party JavaScript library or plugin that isn't zealously guarding against inherited keys, everything can break.
The old way to avoid that breakage is, during enumeration, ...
Retrieving the last record in each group - MySQL
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MySQL 8.0 now supports windowing functions, like almost all popular SQL implementations. With this standard syntax, we can write greatest-n-per-group queries:
WITH ranked_messages AS (
SELECT m.*, ROW_NUMBER() OVER (PARTITION BY nam...
How do you Encrypt and Decrypt a PHP String?
... library written by and reviewed by cryptography experts.
Update: PHP 7.2 now provides libsodium! For best security, update your systems to use PHP 7.2 or higher and only follow the libsodium advice in this answer.
Use libsodium if you have PECL access (or sodium_compat if you want libsodium witho...
How to change fontFamily of TextView in Android
...wn TypeFace but all I need is something different from what it shows right now.
37 Answers
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Application not picking up .css file (flask/python)
... "{{ url_for('static',filename='styles/mainpage.css') }}">
Flask will now look for the css file under static/styles/mainpage.css
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How to remove a project (from the workspace) in PHPStorm?
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I know this post is a little old, but for MAC OS X phpStorm 6*, on the welcome to JetBrains PhpStorm page (under the recent projects use arrow keys up/down to select the project you want to remove, the hold the fn+delete.
Cheer...
CSS @font-face - what does “src: local('☺')” mean?
...excerpt from his blog post:
And.. regarding @font-face syntax
I now recommend the bulletproof smiley variation over the original bulletproof syntax.
@font-face {
font-family: 'Graublau Web';
src: url('GraublauWeb.eot');
src: local('☺'),
url('GraublauWeb.woff') format('woff...
Concept of void pointer in C programming
...e a void* in two ways. Casting to char* is always acceptable, and if you know the original type it points to you can cast to that type. The void* has lost the type info so it'd have to be stored elsewhere.
– Dan Olson
Mar 29 '09 at 10:30
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What is “Linting”?
...able constructs (likely to be bugs) in C language source code. The term is now applied generically to tools that flag suspicious usage in software written in any computer language.
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Pandas percentage of total with groupby
...r
19 s ± 77.1 ms per loop
(mean ± std. dev. of 7 runs, 1 loop each)
So now we see x10 speed up on large, high cardinality datasets.
Be sure to UV these three answers if you UV this one!!
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