Kahlil Lechelt kahlil

This article has been given a more permanent home on my blog. Also, since it was first written, the development of the Promises/A+ specification has made the original emphasis on Promises/A seem somewhat outdated.

You're Missing the Point of Promises

Promises are a software abstraction that makes working with asynchronous operations much more pleasant. In the most basic definition, your code will move from continuation-passing style:

getTweetsFor("domenic", function (err, results) {
 // the rest of your code goes here.

	// Console arguments testing

	var apc = [].slice;

	(function(){
	console.log( apc.call(arguments) );
	})( "false", 1, undefined, null, ["foo","bar","baz"], {a:1,b:2}, false );

	(function(){
	console.log.call( console, apc.call(arguments) );

	/* Code is by A.J. Cates (http://ajcates.com). Find his post here: http://forr.st/~XGU */

	#gradient-triangle {
	width: 60px;
	height: 60px;
	position: absolute;
	top: 3em;
	left: -30px;
	clip: rect(auto 30px 60px auto);
	}

	<!doctype html>
	<!-- Helpful things to keep in your <head/>
	// Shi Chuan, https://github.com/shichuan/mobile-html5-boilerplate
	-->
	<head>
	<!-- consider using below meta tags if you want to disable format detection by default -->
	<meta name="format-detection" content="telephone=no"/>
	<meta name="format-detection" content="address=no"/>

	<!-- consider using below link tag if the page is duplicate content of a desktop version -->

	DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
	Version 2, December 2004

	Copyright (C) 2011 YOUR_NAME_HERE <YOUR_URL_HERE>

	Everyone is permitted to copy and distribute verbatim or modified
	copies of this license document, and changing it is allowed as long
	as the name is changed.

	DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE

	// Array.indexed(4) returns [0, 1, 2, 3]
	Array.indexed = function(n) {
	var result = [];
	while (n--) {
	result[n] = n;
	}
	return result;
	};

	// Shuffle an array in a not too efficient way.

	RewriteEngine On
	RewriteRule ^styles.min.css$ styles.min.php [L]

	#!/bin/bash

	while :
	do
	clear
	git --no-pager log --graph --pretty=oneline --abbrev-commit --decorate --all $*
	sleep 1
	done

	# ....other stuff here
	paginate: 10