In React's terminology, there are five core types that are important to distinguish:
React Elements
In React's terminology, there are five core types that are important to distinguish:
React Elements
In React 0.12, we're making a core change to how React.createClass(...)
and JSX works.
If you're using JSX in the typical way for all (and only) React components, then this transition will be seamless. Otherwise there are some minor breaking changes described below.
The Problem
(by @andrestaltz)
If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.
angular.module('app') | |
.controller('ImageUpload', ['$scope', '$log', | |
function ImageUpload($scope, $log) { | |
$scope.upload_image = function (image) { | |
if (!image.valid) return; | |
var imagesRef, safename, imageUpload; | |
image.isUploading = true; | |
imageUpload = { |
//http://stackoverflow.com/questions/105034/how-to-create-a-guid-uuid-in-javascript | |
Math.random().toString(36).substring(2, 15) + Math.random().toString(36).substring(2, 15); |
0-mail.com | |
0815.ru | |
0clickemail.com | |
0wnd.net | |
0wnd.org | |
10minutemail.com | |
20minutemail.com | |
2prong.com | |
30minutemail.com | |
3d-painting.com |
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written, the development of the Promises/A+ specification has made the original emphasis on Promises/A seem somewhat outdated.
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.
app.filter('bytes', function() { | |
return function(bytes, precision) { | |
if (isNaN(parseFloat(bytes)) || !isFinite(bytes)) return '-'; | |
if (typeof precision === 'undefined') precision = 1; | |
var units = ['bytes', 'kB', 'MB', 'GB', 'TB', 'PB'], | |
number = Math.floor(Math.log(bytes) / Math.log(1024)); | |
return (bytes / Math.pow(1024, Math.floor(number))).toFixed(precision) + ' ' + units[number]; | |
} | |
}); |
// CSS Color Names | |
// Compiled by @bobspace. | |
// | |
// A javascript object containing all of the color names listed in the CSS Spec. | |
// This used to be a big array, but the hex values are useful too, so now it's an object. | |
// If you need the names as an array use Object.keys, but you already knew that! | |
// | |
// The full list can be found here: https://www.w3schools.com/cssref/css_colors.asp | |
// Use it as you please, 'cuz you can't, like, own a color, man. |