ES6

Iterators

• for...in: for Objects
• for...of: Arrays and other data
• Supports break;continue;

https://github.com/sky-uk/agent-console/blob/em-data/app/models/nblt/model.js#L14

Modules

• export any  top-level function, class, var, let, or const
• import too!

https://github.com/sky-uk/agent-console/blob/master/config/environment.js

let and const

• let: 'the new var', block level not function level
• const: define at initialization, can't modify

https://github.com/sky-uk/manbag/blob/use-koa/api/app.js#L12

yield / generators

• towards async/await ES7
• we use https://github.com/tj/co
• non-blocking code in a nice way

https://github.com/sky-uk/manbag/blob/use-koa/api/handlers/queue.js#L39

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/yield

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/yield*

https://github.com/sky-uk/sauron/blob/master/app/components/proxy.js#L39

https://github.com/sky-uk/ldap-auth/blob/master/app/lib/oauth/model.js#L42

template strings

• just easier

https://github.com/sky-uk/manbag/blob/use-koa/workers/xml/index.js#L46

https://github.com/sky-uk/hodor/blob/master/app/components/pace.js#L49

arrow functions

• shorter
• changes this: block rather than function scoped

deconstruction

• easy way to do assignment from objects

https://github.com/sky-uk/agent-console/blob/em-data/app/services/store.js#L62

var o = {p: 42, q: true};
var {p, q} = o;

console.log(p); // 42
console.log(q); // true 

other things

• classes
• sets

you can do it too!

• transpiler: babel
• optimise: https://github.com/sky-uk/hodor/blob/master/.babelrc
• build tool: broccoli
• nodejs: https://nodejs.org/en/docs/es6/
• ember: https://github.com/sky-uk/agent-console/blob/em-data/ember-cli-build.js