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@badsyntax
badsyntax / email_validation.js
Created November 29, 2010 10:32
rfc822 email validation in JS
// See http://rosskendall.com/blog/web/javascript-function-to-check-an-email-address-conforms-to-rfc822
function isEmail(email){
return /^([^\x00-\x20\x22\x28\x29\x2c\x2e\x3a-\x3c\x3e\x40\x5b-\x5d\x7f-\xff]+|\x22([^\x0d\x22\x5c\x80-\xff]|\x5c[\x00-\x7f])*\x22)(\x2e([^\x00-\x20\x22\x28\x29\x2c\x2e\x3a-\x3c\x3e\x40\x5b-\x5d\x7f-\xff]+|\x22([^\x0d\x22\x5c\x80-\xff]|\x5c[\x00-\x7f])*\x22))*\x40([^\x00-\x20\x22\x28\x29\x2c\x2e\x3a-\x3c\x3e\x40\x5b-\x5d\x7f-\xff]+|\x5b([^\x0d\x5b-\x5d\x80-\xff]|\x5c[\x00-\x7f])*\x5d)(\x2e([^\x00-\x20\x22\x28\x29\x2c\x2e\x3a-\x3c\x3e\x40\x5b-\x5d\x7f-\xff]+|\x5b([^\x0d\x5b-\x5d\x80-\xff]|\x5c[\x00-\x7f])*\x5d))*$/.test( email );
}
@gre
gre / easing.js
Last active October 30, 2024 16:49
Simple Easing Functions in Javascript - see https://github.com/gre/bezier-easing
/*
* This work is free. You can redistribute it and/or modify it under the
* terms of the Do What The Fuck You Want To Public License, Version 2,
* as published by Sam Hocevar. See the COPYING file for more details.
*/
/*
* Easing Functions - inspired from http://gizma.com/easing/
* only considering the t value for the range [0, 1] => [0, 1]
*/
EasingFunctions = {
@paolorossi
paolorossi / html5-video-streamer.js
Created March 7, 2012 13:21
Node.js HTML5 video streamer
/*
* Inspired by: http://stackoverflow.com/questions/4360060/video-streaming-with-html-5-via-node-js
*/
var http = require('http'),
fs = require('fs'),
util = require('util');
http.createServer(function (req, res) {
var path = 'video.mp4';
@pascaldevink
pascaldevink / scrollspy.js
Created April 13, 2012 20:53
ScrollSpy in pure javascript
/*
Copyright (C) 2021 Pascal de Vink (Tweakers.net)
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
@BaylorRae
BaylorRae / version-1.js
Created August 15, 2012 00:53
Create fixed table headers with jQuery
// http://obvcode.blogspot.com/2007/11/easiest-way-to-check-ie-version-with.html
var Browser = {
version: function() {
var version = 999; // we assume a sane browser
if (navigator.appVersion.indexOf("MSIE") != -1) {
// bah, IE again, lets downgrade version number
version = parseFloat(navigator.appVersion.split("MSIE")[1]);
}
return version;
@mckamey
mckamey / bezier.js
Created September 25, 2012 16:35
JavaScript port of Webkit CSS cubic-bezier(p1x.p1y,p2x,p2y) and various approximations
/*
* Copyright (C) 2008 Apple Inc. All Rights Reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
@Lakret
Lakret / gist:3825333
Created October 3, 2012 06:08
Quaternions
// Кватернионы — это гиперкомплексные числа, предложенные Гамильтоном в 1843 году.
// Кватернионы с операциями на них образуют алгебраическую структуру, называемую "телом" или "кольцом с делением" (division ring) ℍ.
// Такие алгебраические структуры отличаются от привычных нам полей (например, поля действительных чисел ℝ) тем,
// что умножение в них некоммутативно, т.е. для кватернионов справедливо a * b =/= b * a.
// Кватернионы очень удобны для записи вращений в трёхмерном пространстве, поэтому они нашли широкое применение в механике,
// 3D-графике и компьютерном зрении.
// В этом упражнении вы должны будете создать тип, представляющий кватернионы.
// Этот тип будет размеченным объединением, т.к. мы можем по-разному определить кватернионы.
@nodesocket
nodesocket / gist:3919205
Created October 19, 2012 16:33
All world timezones in an HTML select element
<select name="timezone_offset" id="timezone-offset" class="span5">
<option value="-12:00">(GMT -12:00) Eniwetok, Kwajalein</option>
<option value="-11:00">(GMT -11:00) Midway Island, Samoa</option>
<option value="-10:00">(GMT -10:00) Hawaii</option>
<option value="-09:50">(GMT -9:30) Taiohae</option>
<option value="-09:00">(GMT -9:00) Alaska</option>
<option value="-08:00">(GMT -8:00) Pacific Time (US &amp; Canada)</option>
<option value="-07:00">(GMT -7:00) Mountain Time (US &amp; Canada)</option>
<option value="-06:00">(GMT -6:00) Central Time (US &amp; Canada), Mexico City</option>
<option value="-05:00">(GMT -5:00) Eastern Time (US &amp; Canada), Bogota, Lima</option>
@Warry
Warry / Article.md
Created December 11, 2012 00:11
How to make faster scroll effects?

How to make faster scroll effects?

  • Avoid too many reflows (the browser to recalculate everything)
  • Use advanced CSS3 for graphic card rendering
  • Precalculate sizes and positions

Beware of reflows

The reflow appens as many times as there are frames per seconds. It recalculate all positions that change in order to diplay them. Basically, when you scroll you execute a function where you move things between two reflows. But there are functions that triggers reflows such as jQuery offset, scroll... So there are two things to take care about when you dynamically change objects in javascript to avoid too many reflows:

@JeremyMorgan
JeremyMorgan / OpenGraphHeader.htm
Last active January 16, 2022 21:24
Template for Open Graph Tags. Adding these to your pages will help you display information better on Google+, Facebook and Twitter. Just replace the values with their own.
<meta itemprop="name" content="[ TITLE ]" />
<meta itemprop="image" content="[ LISTING IMAGE ]" />
<meta itemprop="description" content="[ ARTICLE DESCRIPTION ]" />
<meta name="description" content="[ ARTICLE DESCRIPTION ]" />
<meta name="author" content="[ AUTHOR FULL NAME ]" />
<meta property="article:author" content="[ GOOGLE+ AUTHOR URL ]" />
<meta property="article:published_time" content="[ PUBLISHED TIMESTAMP ]" />
<meta property="article:section" content="[ CATEGORY ]" />