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count (non-blank) lines-of-code in bash
...^\s*$', which is the beginning of a line, followed by 0 or more whitespace characters, followed by the end of a line (ie. no content other then whitespace), and display a count of matching lines (-c) instead of the matching lines themselves.
An advantage of this method over methods that involve pip...
What's the “big idea” behind compojure routes?
...ate to a proper response map; Compojure provides sane default handling for strings (as seen above) and a number of other object types; see the compojure.response/render multimethod for details (the code is entirely self-documenting here).
Let's try using defroutes now:
(defroutes example-routes
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Best way to track onchange as-you-type in input type=“text”?
...n. If a user holds down a key, the event will only fire once for the first character. onkeypress fires whenever a char is added to the text field.
– fent
Mar 12 '12 at 17:22
62
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Determine Whether Two Date Ranges Overlap
...a syntactical shortcut for what is a longer implementation, which includes extra checks to verify that the start dates are on or before the endDates. Deriving this from above:
If start and end dates can be out of order, i.e., if it is possible that startA > endA or startB > endB, then you a...
PHP Redirect with POST data
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/**
* Redirect with POST data.
*
* @param string $url URL.
* @param array $post_data POST data. Example: array('foo' => 'var', 'id' => 123)
* @param array $headers Optional. Extra headers to send.
*/
public function redirect_post($url, array $data, array $he...
Virtual functions and performance - C++
...an instruction cache miss like a non-virtual function.
In many cases, two extra cache misses are not a concern, but in a tight loop on performance critical code it can dramatically reduce performance.
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NodeJS - Error installing with NPM
...t least) 2 ways to resolve this.
Installing the Cygwin package cygutils-extra and use winln.
Use native Windows CMD in Admin mode.
For (1) you can create a proper symlink from within Cygwin shell by doing these steps:
# To make the Cygwin environment treat Windows links properly:
# Alternat...
Best way to store password in database [closed]
...note that a common misconception is to simply add the same unique and long string to all passwords; while this is not horrible, it is best to add unique salts to every password. Read this for more.
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How do I wrap text in a pre tag?
... answered May 23 '11 at 13:45
Richard McKechnieRichard McKechnie
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Should commit messages be written in present or past tense? [closed]
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"Fix bug X" is 2 characters shorter than "Fixed bug X".
And 3 shorter than "Fixing bug X".
From the point of view of writing-short-commit-messages, the present tense sometimes / usually saves a few characters?
Which I actually think matters ...