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Getting Started with RequireJS
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Ayumu Sato
November 16, 2012
Programming
10
4.5k
Getting Started with RequireJS
社内勉強会で利用した資料から、いろいろ調整したりしてうp
Ayumu Sato
November 16, 2012
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Transcript
(FUUJOH4UBSUFE 3FRVJSF+4 ࣾษڧձ 1
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✓+BWB4DSJQUॻ͍ͯΔͻͱ͚ ✓खΛಈ͔͢ΩοΧέΛͭ͘Ζ͏ ✓࣮ྫ·͑ͯ͡ɺ༰͞͠Ί 4
1SPCMFNT தنҎ্ͷ+BWB4DSJQUΛཧ͢Δ্Ͱͷ 5
6 Bad Context Plugins Libs of choice jQuery Backbone Your
Code source. Dependency Management with RequireJS
7 Good Context Plugins Libs of choice jQuery Backbone Your
Code source. Dependency Management with RequireJS
8 Dependencies Plugins Libs of choice jQuery Backbone Your Code
source. Dependency Management with RequireJS
$PNNPOJTTVFT 9 ΘΕΘΕͷѻ͏ίʔυେͰ͋Δ ݸʑͷίʔυཻΛͦΖ͍͑ͨ ࠶ར༻Ͱ͖ΔΑ͏ʹ͍ͨ͠ ґଘؔΛཧ͍ͨ͠
ͳΜͱ͔͍ͨ͠
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FH5)&#*(0/& (function() { var Application = { foo: function() {...},
bar: function() {...} }; // long historical stacking code... new Application(); })(); 12 ߦ͑ͨ͋ͨΓͰڰؾ ࡍݶͳ͘ॏ͘ͳΔΤσΟλ
FH/BNFTQBDF 13 // main.js window.NS = {}; // page.js
window.NS.Page = { initialize: function() {}, getContent: function() {}, render : function() {} }; // util.js window.NS.Util = {};
FH/BNFTQBDF // first <script src=”js/main.js”></script> <script src=”js/util.js”></script> <script src=”js/page.js”></script>
14 Αׂ͘͞ΕͯΔΑ͏ʹݟ͑Δ
FH/BNFTQBDF // finally <script src=”js/main.js”></script> <script src=”js/util.js”></script> <script src=”js/module_1.js”></script>
<script src=”js/module_6.js”></script> <script src=”js/module_5.js”></script> <script src=”js/module_2.js”></script> <script src=”js/module_3.js”></script> <script src=”js/module_4.js”></script> <script src=”js/module_7.js”></script> <script src=”js/page.js”></script> 15 ಡΈࠐΈॱͱ͍͏໊ͷґଘੑࠈ ͍ͯ͏͔खॻ͖ϜϦ
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* @param {Array} dependencies * @param {Function} factory */ define(id, dependencies, factory); 17
+BWB4DSJQU QBHFKT // page.js (depend moduleA & Util) define(['moduleA', 'util'],
function(moduleA, Util) { function Page($elm) { this.$elm = $elm Util.greatFunction(); } Page.prototype.render = function() { return this.$elm.html(moduleA.getContent()); } return Page; }); 18
+BWB4DSJQU NBJOKT // main.js define(['jquery', 'page'], function($, Page) { //
initialize new Page($('#container')); // some business Page.render(); }); 19
)5.- <!-- Simple! --> <script data-main="main" src="require.js"> </script> 20 ղܾ͞Εͨʂ
<!-- Same code --> <script src="require.js"></script> <script> require(['main'], function(Main) { }); </script>
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35
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*OTUBMMSKT # άϩʔόϧʹΠϯετʔϧ % npm install -g requirejs # ύε͕௨͍ͬͯΕɺr.js͕ར༻ՄೳʹͳΔ
% r.js See https://github.com/jrburke/r.js for usage 38
6TJOHSKT % r.js -o out=js/all.js\ baseUrl=js\ name=bootstrap\ mainConfigFile=js/bootstrap.js # mainConfigFileʹؚ·ΕΔbaseUrlɺ
# ࢦఆϑΝΠϧ͔Βͷ૬ରʹͳͬͯ͠·͏ͷͰɺ # ΦϓγϣϯͰࢦఆ͢Δ΄͏͕Α͍ 39
"MNPOE % r.js -o out=js/all.js\ baseUrl=js\ name=lib/almond\ include=bootstrap\ mainConfigFile=js/bootstrap.js #
ඇಉظϩʔυॲཧͳͲɺෆཁͳػೳΛআ͍ͨshim # 1ϑΝΠϧʹ·ͱΊΔ͜ͱ # ґଘϞδϡʔϧ໊Λಈతʹࢦఆ͠ͳ͍͜ͱ 40
HSVOUSFRVJSFKT % npm install -g grunt % npm link %
grunt requirejs 41
define(['backbone'], function(Backbone) { return Backbone.Model.extend({ url: 'path/to', defaults: { foo:
'bar' }, validation: { // ... } }); // ऄ newͨ͠ͷΛreturn͢ΔͱsingletonΆ͍ }); 42 "QQFOEJYXJUI#BDLCPOF
"QQFOEJYXJUI+BTNJOF // SpecRunner.html require(['spec/util', 'spec/main'], function() { var env =
jasmine.getEnv(); env.addReporter(new jasmine.HtmlReporter); env.execute(); }); // spec.coffee define ['util'], (Util)-> describe 'Commmon Utilities', -> util = null beforeEach -> util = new Util it 'Should `plzTruthy` returns true', -> expect(Util.plzTruthy()).toBe true 43
"QQFOEJY&YJTUJOH.PEVMF // ͨͱ͑ Zepto ($) // `define`͕ఆٛ͞Ε͍ͯͯɺAMDΆ͔ͬͨΒ... if (typeof define
=== 'function' && define.amd) { define([], function() { return Zepto; }); } 44
"QQFOEJY$PNNPO+44VHBS define(function(require) { var hoge = require('hoge'), fuga = require('fuga'),
piyo = require('piyo'); return { hogehoge: hoge.toString(), fugafuga: fuga.toString(), piyopiyo: piyo.toString() } }); 45
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install graphviz # ϞδϡʔϧͷґଘؔΛՄࢹԽ % madge --image out.png --format amd ./app 46
$PODMVTJPO 3FRVJSF+4ϥΠϒϥϦͰ͋Γͭͭɹɹɹɹ ґଘղܾ͢ΔͨΊͷϞμϯύλʔϯͦͷͷ ͨॻ͖ͷ+4͔Βɺૄ݁߹ͳ+4ʹ ूஂ։ൃظϦϑΝΫλϦϯάΛݟӽͯ͠ ಋೖ͢Δͱɺ͞ΒʹՁ͕͋Δͣ
ͥͻݱͰల։͍͚ͯͨͩ͠Δͱ͍ 47
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1BSJT+43FRVJSF+4 TMJEF .PEVMBS+BWB4DSJQUXJUI".%BOE3FRVJSF+4 3FRVJSF+4 1IPOF(BQ (FUUJOH4UBSUFE.BOBHJOH$MJFOU4JEF4DSJQUTXJUI3FRVJSFKT
m*"N/PU.ZTFMG /BNFTQBDFTBSF0ME4DIPPM]#MPH].JMMFS.FEFJSPT ".%JT/PUUIF"OTXFS5PN%BMF +BWB4DSJQUNPEVMFMPBEFSTOFDFTTBSZFWJM ]3VCFO 7FSCPSHI KBQI S CZ$ISJT4USPN1SFUUZ#BDLCPOFKT7JFXTXJUI 3FRVJSFKT 49