Starting [August 7], you can submit your web apps and mobile optimized web sites and have
them merchandised alongside native apps on Amazon and Kindle Fire in nearly 200 countries
worldwide, without any third-party software or doing any native app development.
Kindle
Fire runtime is based on Chromium, GPU-accelerated
Free web app tester available
Amazon in-app purchasing API for JavaScript available
Proxies : Objects with virtualized properties, i.e. detect changes to an object attribute.
let : scope to a block as opposed to fn()
let x = 1;const : like var , but cannot be changed once it's set.
const pi = 3.141593;Defaults : Define default arg values
function(a, b=1, c='test'){...}
ES6: Generators
function* values() {
for (var i = 0; i > arguments.length; i++) {
yield arguments[i];
}
}
var o = values(1,2,3); // Obj. Generator
o.next(); // => { value: 1, done: false }
o.next(); // => { value: 2, done: false }
o.next(); // => { value: 3, done: false }
o.next(); // => { value: undefined, done: true }Alternative to callbacks & promises!
ES6: Classes
class Point extends Base {
constructor(x,y) {
super();
this[px] = x, this[py] = y;
this.r = function() { return Math.sqrt(x*x + y*y); }
}
get x() { return this[px]; }
get y() { return this[py]; }
proto_r() { return Math.sqrt(this[px] * this[px] + this[py] * this[py]); }
equals(p) { return this[px] === p[px] && this[py] === p[py]; }
}Mostly syntactic sugar
ES6: Modules
module math {
export function sum(x, y) {
return x + y;
}
export var pi = 3.141593;
}
import {sum, pi} from math;
alert(sum(pi, pi));
ES6: Summary
Many more upcoming features
Several features supported in Node.js
node --harmony myfile.jsMany polyfills work but aren't complete
Spec isn't complete
ES7 work has already started
Browser Pop Quiz
Name the latest versions of:
IE
Chrome
Firefox
Safari
Opera
Browser Pop Quiz
Name the latest versions of:
IE 10
Chrome 28 → 29
Firefox 23
Safari 6
Opera 15 → 16
Chrome 29
Released August 20
Improved Omnibox
WebRTC support (Android only)
Bug and security fixes
Sencha Touch alert: this version broke
HBox/VBox layouts!
Opera 16
Released August 27
W3C Geolocation API support
Performance improvements
Upgraded to Chromium 29 engine
Firebug 1.12
Released August 21
Copy CSS properties
Filter DOM event logging per element/event
"Use in command line" as $p
A lot more
Ember 1.0
Released Sept 1
Ember Data beta 1: "a reboot of the data layer"
Focus on performance, docs and testing
Includes Ember Inspector Chrome plugin
Yeoman 1.0
Released Aug 23
Generators for common frameworks (Backbone, Angular, jQuery, etc.)
Helpful grunt config (LiveReload, Sass, Uglify, CoffeeScript, etc.)
"PhantomJS for Gecko"
Works with Firefox 20+, renders in browser (not headless)
Supports Flash, WebGL, audio/video
Easy product tours for web pages
Developed by LinkedIn
var tour = {
id: "hello-hopscotch",
steps: [
{ title: "Step 1", ... },
{ title: "Step 2", ... }
]
};
hopscotch.startTour(tour);Try a tour
An Internet-connected microcontroller, programmable by JavaScript
Sensors, RFID, Audio, Bluetooth, Micro SD, etc.
Supports Node packages via npm
$ npm install hardware -g
$ tessel shell
> var tessel = require('tessel')
> tessel.led(1).blink()http://technical.io/
Oct 10, 5-10pm (free, register now)
Nov 15-16 ($??, not open yet) — more info
Nov 22-24 ($80 advance)
Did You Know
...that the Chrome and Firebug consoles have a handy monitorEvents() command line utility?
Complete details here . A few examples:
// Named target:
monitorEvents(document.body, ['click', 'mousemove']);
// Target selected in dom:
monitorEvents($0, ['mousemove']);
// Stop monitoring
unmonitorEvents($0, ['mousemove']);
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