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@JamieMason
JamieMason / average.js
Created July 28, 2011 09:29
Using underscore.js, return the average value from an array of Numbers.
function average (arr)
{
return _.reduce(arr, function(memo, num)
{
return memo + num;
}, 0) / arr.length;
}
@paulirish
paulirish / rAF.js
Last active November 11, 2024 03:20
requestAnimationFrame polyfill
// http://paulirish.com/2011/requestanimationframe-for-smart-animating/
// http://my.opera.com/emoller/blog/2011/12/20/requestanimationframe-for-smart-er-animating
// requestAnimationFrame polyfill by Erik Möller. fixes from Paul Irish and Tino Zijdel
// MIT license
(function() {
var lastTime = 0;
var vendors = ['ms', 'moz', 'webkit', 'o'];
@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 = {
@dongyuwei
dongyuwei / node-reader.js
Created March 14, 2012 04:58
google reader api for nodejs
/*
This library was developed by Will Honey.
It is licensed under the GPLv3 Open Source License
This library requires the underscore library found at http://documentcloud.github.com/underscore/
This library requires the underscore string library found at http://edtsech.github.com/underscore.string/
This library requires the support of localStorage. Updates could be easily made to change that.
*/
/* jslint adsafe: false, devel: true, regexp: true, browser: true, vars: true, nomen: true, maxerr: 50, indent: 4 */
@nikcorg
nikcorg / gist:2323429
Created April 6, 2012 22:08
Bresenham's line algorithm
/**
* My take on Bresenham's line algorithm
*
* http://en.wikipedia.org/wiki/Bresenham's_line_algorithm
*
* Based off of the limited algorithm, amended by own research,
* trial and error, and plain stubborness.
*
* Demo: http://jsfiddle.net/VFybR/26/
*/
@conorbuck
conorbuck / angle-between-points.js
Created May 5, 2012 22:51
JavaScript: Find the angle between two points
var p1 = {
x: 20,
y: 20
};
var p2 = {
x: 40,
y: 40
};
@timyates
timyates / rdp.coffee
Created June 8, 2012 11:03 — forked from rhyolight/rdp.js
Ramer-Douglas-Peucker line filtering algorithm in JavaScript
findPerpendicularDistance = ( point, line ) ->
[pointX,pointY] = point[0..1]
lineStart = x: line[0][0], y: line[0][1]
lineEnd = x: line[1][0], y: line[1][1]
slope = ( lineEnd.y - lineStart.y ) / ( lineEnd.x - lineStart.x )
intercept = lineStart.y - ( slope * lineStart.x )
Math.abs( slope * pointX - pointY + intercept ) / Math.sqrt( Math.pow( slope, 2) + 1)
douglasPeucker = ( points, epsilon ) ->
maxIndex = maxDistance = 0
@max-mapper
max-mapper / helloworld.js
Created November 27, 2012 06:55
droneduino
var serialport = require('node-serialport')
var sp = new serialport.SerialPort("/dev/ttyO3", {
parser: serialport.parsers.raw,
baud: 9600
})
sp.on('data', function(chunk) {
console.log(chunk.toString('hex'), chunk.toString(), chunk)
})
@desandro
desandro / require-js-discussion.md
Created January 31, 2013 20:26
Can you help me understand the benefit of require.js?

I'm having trouble understanding the benefit of require.js. Can you help me out? I imagine other developers have a similar interest.

From Require.js - Why AMD:

The AMD format comes from wanting a module format that was better than today's "write a bunch of script tags with implicit dependencies that you have to manually order"

I don't quite understand why this methodology is so bad. The difficult part is that you have to manually order dependencies. But the benefit is that you don't have an additional layer of abstraction.


@jkosoy
jkosoy / gist:5379904
Last active September 6, 2024 08:51
Raspberry Pi setup

Raspberry Pi setup

Just wanted a quick start guide for myself so that I wouldn't have to keep rooting through Google to remember all this stuff. Hopefully it helps other people.

If you had other ideas or suggestions please leave a comment.

Useful things to own before you buy a Pi

The first time I bought a Pi I was enormously frustrated with myself because I didn't own all of this stuff. Kept having to order things off of Amazon and wait to get started... very irritating. This is all good stuff to have laying around anyway: