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Learning Regular Expressions [closed]
... (zero or more times)
+ (one or more times)
{n} (exactly n times)
{n,} (at least n times)
{n,m} (at least n times but no more than m times)
Putting some of these blocks together, the pattern [Nn]*ick matches all of
ick
Nick
nick
Nnick
nNick
nnick
(and so on)
The first match demonstrates an imp...
Is there a “default” MIME type?
...
The least specific official MIME type is application/octet-stream. Without any additional information, it says "here is a bunch of bytes, hopefully there is an application over on your end which knows what to do with them". Som...
How to invert a grep expression
...(i.e. succeed if all of the lines do not match the pattern, rather than at least one) should use ! grep. This finds use in conditional expressions, e.g.: if ! ls | grep -qE ".(\.exe)$"; then echo No .exe files in $(pwd); fi.
– Zyl
Oct 23 '18 at 15:51
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Join vs. sub-query
...nt of Donald Knuth: "Premature optimization is the root of all evil (or at least most of it) in programming". However, naturally there are programming areas where performance is paramount... Ideally, when one succeeds in reconciling one with another :)
– simhumileco
...
How to style icon color, size, and shadow of Font Awesome Icons
...rs are less specific (as in specificity). So, my favorite practice is to atleast match specifity and put style after to override.
– John
May 13 at 18:28
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Is there any difference between __DIR__ and dirname(__FILE__) in PHP?
...g '/home/squale/developpement/tests/temp' (length=37)
But, there are at least two differences :
__DIR__ only exists with PHP >= 5.3
which is why dirname(__FILE__) is more widely used
__DIR__ is evaluated at compile-time, while dirname(__FILE__) means a function-call and is evaluated at ex...
How to get Twitter-Bootstrap navigation to show active link?
.... Likewise for repeating the same code over and over. I would recommend at least using the current_page? method to check the current controller/action, and would also move the code into a helper to avoid the code repetition.
– Dustin Frazier
May 9 '12 at 17:17
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Securing my REST API with OAuth while still allowing authentication via third party OAuth providers
...in.
A service or application does not authenticate to your web site -- at least not typically. A user authorizes a service or application to access the user's data. This is typically done by the application requesting authorization of the service provider, then sending the user to the service pro...
How to change the name of a Django app?
...hon 2.7 and Django 1.8, but I'm confident the same process will work on at least Python 3.6 and Django 2.1.
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Shards and replicas in Elasticsearch
...o manage big amounts of data.
Every elasticsearch index is composed of at least one primary shard since that's where the data is stored. Every shard comes at a cost, though, therefore if you have a single node and no foreseeable growth, just stick with a single primary shard.
Another type of shard...