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Remove all special characters from a string [duplicate]
...le to convert titles that could contain anything and have them stripped of all special characters so they only have letters and numbers and of course I would like to replace spaces with hyphens.
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Best way to select random rows PostgreSQL
...lass WHERE oid = 'schema_name.big'::regclass;
As long as ct isn't much smaller than id_span, the query will outperform other approaches.
WITH params AS (
SELECT 1 AS min_id -- minimum id <= current min id
, 5100000 AS id_span -- rounded up. (max_id - m...
counting number of directories in a specific directory
... can instead test the directory's children and do not descend into them at all:
$ find .vim/* -maxdepth 0 -type d
.vim/after
.vim/autoload
.vim/bundle
.vim/colors
.vim/compiler
.vim/doc
.vim/ftdetect
.vim/ftplugin
.vim/indent
.vim/plugin
.vim/syntax
$ find .vim/* -maxdepth 0 -type d | wc -l
11
$ f...
Tools to selectively Copy HTML+CSS+JS From A Specific Element of DOM [closed]
Like most web developers, I occasionally like to look at the source of websites to see how their markup is built. Tools like Firebug and Chrome Developer Tools make it easy to inspect the code, but if I want to copy a specific section and play around with it locally, it would be a pain to copy all t...
Why am I seeing an “origin is not allowed by Access-Control-Allow-Origin” error here? [duplicate]
...to use javascript. You make a request and results are encapsulated into a callback function which is run in the client. It's the same as linking a new script tag into the head part of your html (you know that you can load scripts from different domains than yours here).
However, to use jsonp the ser...
Implode an array with JavaScript?
...t this answer or some how make it go to the top? I missed this answer initially reading this.
– PressingOnAlways
Mar 1 '14 at 2:40
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How do you deal with configuration files in source control?
...ns. How do you deal with this in source control? Not check in this file at all, check it with different names or do something fancy altogether?
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How to get past the login page with Wget?
...p
Make sure the --post-data parameter is properly percent-encoded (especially ampersands!) or the request will probably fail. Also make sure that user and password are the correct keys; you can find out the correct keys by sleuthing the HTML of the login page (look into your browser’s “inspect...
Get the first N elements of an array?
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Use array_slice()
This is an example from the PHP manual: array_slice
$input = array("a", "b", "c", "d", "e");
$output = array_slice($input, 0, 3); // returns "a", "b", and "c"
There is only a small issue
If the array indices are meaningful to you, remember that ar...
jQuery loop over JSON result from AJAX Success?
On the jQuery AJAX success callback I want to loop over the results of the object. This is an example of how the response looks in Firebug.
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