paxperscientiam

// browser detect
var BrowserDetect = {
        init: function() {
		this.browser = this.searchString(this.dataBrowser) || "An unknown browser";
		this.version = this.searchVersion(navigator.userAgent) || this.searchVersion(navigator.appVersion) || "an unknown version";
		this.OS = this.searchString(this.dataOS) || "an unknown OS";
	},
	searchString: function(data) {
		for (var i = 0; i < data.length; i++) {
			var dataString = data[i].string;

paxperscientiam

const transitionToPromise = (el, property, value) =>
  new Promise(resolve => {
    el.style[property] = value;
    const transitionEnded = e => {
      if (e.propertyName !== property) return;
      el.removeEventListener('transitionend', transitionEnded);
      resolve();
    }
    el.addEventListener('transitionend', transitionEnded);
  });

paxperscientiam

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written, the development of the Promises/A+ specification has made the original emphasis on Promises/A seem somewhat outdated.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.

paxperscientiam

say you have two arrays, $a1 and $a2, and you want to combine them.

<?php

$a1 = [
  'a' => 'foo',
  'b' => ['bar']
];
$a2 = [
  'a' => 'bar',

paxperscientiam

<?php

use Illuminate\Container\Container;
use Illuminate\Database\Capsule\Manager as Capsule;
use Illuminate\Database\ConnectionResolverInterface;
use Illuminate\Database\Migrations\DatabaseMigrationRepository;
use Illuminate\Database\Migrations\MigrationRepositoryInterface;
use Illuminate\Database\Migrations\Migrator;
use Illuminate\Events\Dispatcher;

paxperscientiam

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gm.com,General Motors,,"General Motors is home to Buick, Cadillac, GMC and Chevrolet. Find the latest news about GM automotive innovations, investor relations and more. ",GM
ge.com,General Electric,,,generalelectric
chevron.com,ChevronTexaco,"cvx, chevrontexaco, cheveron,