Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
PolyConf: JS Modules
Search
Jack Franklin
October 31, 2014
Technology
0
320
PolyConf: JS Modules
Jack Franklin
October 31, 2014
Tweet
Share
More Decks by Jack Franklin
See All by Jack Franklin
Advanced React Meetup: Testing JavaScript
jackfranklin
1
180
Components on the Web: Frontend NE
jackfranklin
1
730
ReactiveConf: Lessons Migrating Complex Software
jackfranklin
0
400
Front Trends: Migrating complex software
jackfranklin
1
720
Migrating from Angular to React: Manc React
jackfranklin
1
130
Half Stack Fest: Webpack
jackfranklin
4
470
FullStackFest: Elm for JS Developers
jackfranklin
1
200
Codelicious: Intro to ES2015
jackfranklin
0
330
PolyConf: Elm for JS Developers
jackfranklin
0
250
Other Decks in Technology
See All in Technology
VPoEの視点から見た、ヘンリーがサーバーサイドKotlinを使う理由 / Why Server-side Kotlin 2024
cho0o0
1
420
データ分析基盤を作ってみよう~設計編~
nrinetcom
PRO
1
110
OSSコミットしてZennの課題を解決した話
dyoshikawa1993
0
150
スレットハンティングについて知っておきたいこと
hacket
0
130
[2024最新版]AWS Control Towerを使ったセキュアなマルチアカウント環境の作り方
hiashisan
0
270
サービスの持続的な成長と技術負債について
siva_official
PRO
10
4.4k
How to Think Like a Performance Engineer
csswizardry
4
590
JBUG岡山 #6 WordCamp男木島の チームビルディング
takeshifurusato
0
150
AWSサービスメニュー開発をしていてAWSを好きだ!と感じた瞬間
toru_kubota
0
130
初中級者用如何使用backlog -VALE TUDOEDITION-
in0u
0
140
簡単に始めるSnowflakeの機械学習
nayuts
1
190
エンジニア向け会社紹介資料
caddi_eng
14
230k
Featured
See All Featured
Web Components: a chance to create the future
zenorocha
307
41k
Exploring the Power of Turbo Streams & Action Cable | RailsConf2023
kevinliebholz
12
3.8k
10 Git Anti Patterns You Should be Aware of
lemiorhan
652
58k
A Modern Web Designer's Workflow
chriscoyier
689
190k
Rebuilding a faster, lazier Slack
samanthasiow
78
8.5k
Become a Pro
speakerdeck
PRO
15
4.8k
Debugging Ruby Performance
tmm1
71
11k
How to Think Like a Performance Engineer
csswizardry
4
590
I Don’t Have Time: Getting Over the Fear to Launch Your Podcast
jcasabona
26
1.8k
Embracing the Ebb and Flow
colly
81
4.3k
Typedesign – Prime Four
hannesfritz
37
2.2k
Facilitating Awesome Meetings
lara
46
5.8k
Transcript
JavaScript Modules
@Jack_Franklin javascriptplayground.com
gocardless.com
The Problem
Dependencies
Solutions
AMD (Require.js)
define(['jquery'], function($) { return { red: function() { $('p').css('color', 'red');
} } }); require(['./file'], function(f) { f.red(); });
define(['jquery'], function($) { return { red: function() { $('p').css('color', 'red');
} } }); require(['./file'], function(f) { f.red(); });
define(['jquery'], function($) { return { red: function() { $('p').css('color', 'red');
} } }); require(['./file'], function(f) { f.red(); });
define(['jquery'], function($) { return { red: function() { $('p').css('color', 'red');
} } }); require(['./file'], function(f) { f.red(); });
define(['jquery'], function($) { return { red: function() { $('p').css('color', 'red');
} } }); require(['./file'], function(f) { f.red(); });
no dev build step build tool for prod specific syntax
to learn asynchronous
Browserify
// module.js var $ = require('jquery'); module.exports = { red:
function() { $('p').css('color', 'red'); } }; // app.js var app = require('./module'); app.red();
// module.js var $ = require('jquery'); module.exports = { red:
function() { $('p').css('color', 'red'); } }; // app.js var app = require('./module'); app.red();
// module.js var $ = require('jquery'); module.exports = { red:
function() { $('p').css('color', 'red'); } }; // app.js var app = require('./module'); app.red();
// module.js var $ = require('jquery'); module.exports = { red:
function() { $('p').css('color', 'red'); } }; // app.js var app = require('./module'); app.red();
dev build step build tool for prod CommonJS (Node) synchronous
<script> tags
// module.js var red = function() { $('p').css('color', 'red'); }
// app.js red(); // index.html <script src="jquery.js"></script> <script src="module.js"></script> <script src="app.js"></script>
// module.js var red = function() { $('p').css('color', 'red'); }
// app.js red(); // index.html <script src="jquery.js"></script> <script src="module.js"></script> <script src="app.js"></script>
// module.js var red = function() { $('p').css('color', 'red'); }
// app.js red(); // index.html <script src="jquery.js"></script> <script src="module.js"></script> <script src="app.js"></script>
// module.js var red = function() { $('p').css('color', 'red'); }
// app.js red(); // index.html <script src="jquery.js"></script> <script src="module.js"></script> <script src="app.js"></script>
no dev build step (ish) build tool for prod (ish)
no dependency management async or sync
no dependency management
We can do better
We have done better
None
ES6 Modules
// module.js import $ from './jquery'; export var red =
function() { $('p').css('color', red'); } // app.js import * as app from './module'; app.red();
// module.js import $ from './jquery'; export var red =
function() { $('p').css('color', red'); } // app.js import * as app from './module'; app.red();
// module.js import $ from './jquery'; export var red =
function() { $('p').css('color', red'); } // app.js import * as app from './module'; app.red();
// module.js import $ from './jquery'; export var red =
function() { $('p').css('color', red'); } // app.js import * as app from './module'; app.red();
// module.js import $ from './jquery'; export var red =
function() { $('p').css('color', red'); } // app.js import {red} from './module'; red();
// module.js import $ from './jquery'; export default function() {
$('p').css('color', red'); } // app.js import red from './module'; red();
// module.js import $ from './jquery'; export default function() {
$('p').css('color', red'); } // app.js import red from './module'; red();
Static
don't have to run code to know exports static lookups
visibility of variables circular dependencies ready for types (!)
async or sync
static imports = can resolve before evaluation of module
it just…works?
Module API
// module.js import $ from './jquery'; export var red =
function() { $('p').css('color', red'); } // app.js System.import('./module') .then(function(mod) { mod.red(); });
Module Config (hooks)
http://www.2ality.com/ 2014/09/es6-modules- final.html
But what about now?
None
system.js traceur.js es6-module-loader.js
// index.html <script src="lib/system.js"></ script> <script> System.import('./app'); </script> // app.js
alert('hello world');
// index.html <script src="lib/system.js"></ script> <script> System.import('./app'); </script> // app.js
alert('hello world');
// index.html <script src="lib/system.js"></ script> <script> System.import('./app'); </script> // app.js
alert('hello world');
// index.html <script src="lib/system.js"></script> <script> System.import(‘./app’) .catch( console.error.bind(console) ); </script>
… <body><p>Hello World</p></body>
// red.js import $ from 'jquery' export default function() {
$('p').css('color', 'red'); };
// red.js import $ from 'jquery' export default function() {
$('p').css('color', 'red'); };
// red.js import $ from 'jquery' export default function() {
$('p').css('color', 'red'); };
// app.js import $ from 'jquery' import red from './red'
$(function() { red(); });
None
None
jspm.io
Demo!
// index.html <script src='//jspm.io/system.js'> </script> <script> System.import('~/app'); </script>
// index.html <script src='//jspm.io/system.js'> </script> <script> System.import('~/app'); </script>
npm install --global jspm
jspm install npm:lodash jspm install github:components/ jquery
// app.js import $ from 'npm:jquery'; console.log($.fn.jquery) // 2.1.1
this is the best solution right now
jspm bundle app
// built.html <script src='system.js'></script> <script src='config.js'></script> <script src='build.js'></script> <script> System.import('app');
</script>
it just…works?
jspm.io @guybedford
ES6 is coming The tooling is there And will only
get better
http://javascriptplayground.com/ https://github.com/assetgraph/ assetgraph https://github.com/ModuleLoader/es6- module-loader https://github.com/systemjs/systemjs http://jspm.io/
Thanks! @jack_franklin