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@banksean
banksean / mersenne-twister.js
Created February 10, 2010 16:24
a Mersenne Twister implementation in javascript. Makes up for Math.random() not letting you specify a seed value.
/*
I've wrapped Makoto Matsumoto and Takuji Nishimura's code in a namespace
so it's better encapsulated. Now you can have multiple random number generators
and they won't stomp all over eachother's state.
If you want to use this as a substitute for Math.random(), use the random()
method like so:
var m = new MersenneTwister();
//
// Regular Expression for URL validation
//
// Author: Diego Perini
// Created: 2010/12/05
// Updated: 2018/09/12
// License: MIT
//
// Copyright (c) 2010-2018 Diego Perini (http://www.iport.it)
//
@mckamey
mckamey / doctype.js
Created January 10, 2011 16:57
DocType extraction snippet
function getDocType(document) {
var node = document.firstChild;
while (node) {
var nodeType = node.nodeType;
if (nodeType === 10) {
// doctype
var doctype = '<!DOCTYPE '+(document.documentElement.tagName || 'html').toLowerCase();
if (node.publicId) {
doctype += ' PUBLIC "' + node.publicId + '"';
}
@nilcolor
nilcolor / Node.js CORS
Created February 8, 2011 15:28
Node.js cross-origin POST. You should response for OPTIONS request first. Something like this.
if (req.method === 'OPTIONS') {
console.log('!OPTIONS');
var headers = {};
// IE8 does not allow domains to be specified, just the *
// headers["Access-Control-Allow-Origin"] = req.headers.origin;
headers["Access-Control-Allow-Origin"] = "*";
headers["Access-Control-Allow-Methods"] = "POST, GET, PUT, DELETE, OPTIONS";
headers["Access-Control-Allow-Credentials"] = false;
headers["Access-Control-Max-Age"] = '86400'; // 24 hours
headers["Access-Control-Allow-Headers"] = "X-Requested-With, X-HTTP-Method-Override, Content-Type, Accept";
@cowboy
cowboy / ba-smallwalker.js
Created May 5, 2011 21:27
Small Walker: A small and simple JavaScript DOM walker
/*!
* Small Walker - v0.1.1 - 5/5/2011
* http://benalman.com/
*
* Copyright (c) 2011 "Cowboy" Ben Alman
* Dual licensed under the MIT and GPL licenses.
* http://benalman.com/about/license/
*/
// Walk the DOM, depth-first (HTML order). Inside the callback, `this` is the
@endtwist
endtwist / gist:1630834
Created January 18, 2012 03:57
Paste event in Google Chrome
$( 'body' ).bind( 'paste', function( evt ) {
var items = evt.originalEvent.clipboardData.items
, paste;
// Items have a "kind" (string, file) and a MIME type
console.log( 'First item "kind":', items[0].kind );
console.log( 'First item MIME type:', items[0].type );
// If a user pastes image data, there are 2 items: the file name (at index 0) and the file (at index 1)
// but if the user pastes plain text or HTML, index 0 is the data with markup and index 1 is the plain, unadorned text.
@cuppster
cuppster / node-express-cors-middleware.js
Created April 9, 2012 16:02
express.js middleware to support CORS pre-flight requests
app.use(express.methodOverride());
// ## CORS middleware
//
// see: http://stackoverflow.com/questions/7067966/how-to-allow-cors-in-express-nodejs
var allowCrossDomain = function(req, res, next) {
res.header('Access-Control-Allow-Origin', '*');
res.header('Access-Control-Allow-Methods', 'GET,PUT,POST,DELETE');
res.header('Access-Control-Allow-Headers', 'Content-Type, Authorization');
var lastUsedHeap = 0; // remember the heap size
function checkMemory()
{
// check if the heap size is this cycle is LESS than what we had last
// cycle; if so, then the garbage collector has kicked in
if (window.performance.memory.usedJSHeapSize < lastUsedHeap)
console.log('Garbage collected!');
lastUsedHeap = window.performance.memory.usedJSHeapSize;
@jed
jed / rendering_templates_obsolete.md
Created October 19, 2012 05:07
Rendering templates obsolete

(tl;dr DOM builders like [domo][domo] trump HTML templates on the client.)

Like all web developers, I've used a lot of template engines. Like most, I've also written a few of them, some of which even [fit in a tweet][140].

The first open-source code I ever wrote was also one of the the first template engines for node.js, [a port][node-tmpl] of the mother of all JavaScript template engines, [John Resig][jresig]'s [micro-templates][tmpl]. Of course, these days you can't swing a dead cat without hitting a template engine; one in eight packages on npm ([2,220][npm templates] of 16,226 as of 10/19) involve templates.

John's implementation has since evolved and [lives on in Underscore.js][underscore], which means it's the default choice for templating in Backbone.js. And for a while, it's all I would ever use when building a client-side app.

But I can't really see the value in client-side HTML templates anymore.

@bshamric
bshamric / cache.js
Last active January 24, 2021 12:08
I like phantomjs, but it doesn't directly support getting images from webpages without requesting them separately like in casperjs. I went through QTNetworking code in the phantomjs repo until I figured out where the cache was. To use this, have all three files in the same directory. Then modify test.js for whatever you need. Call phantom js wit…
var fs = require('fs');
//this is the path that QTNetwork classes uses for caching files for it's http client
//the path should be the one that has 16 folders labeled 0,1,2,3,...,F
exports.cachePath = '/path/to/phantomjs/cache/data/folder';
//this is the extension used for files in the cache path
exports.cacheExtension = "d";
//the resources that are to be saved