要件を満たすAngular2の最小構成を探る。他のプロジェクトのテンプレートとなることを目指す。
$ git clone [this project clone-url]
$ cd angular2-minimum
$ npm install
$ npm run start:aot
- Angular 2.0.0
- Typescript 2.0.0
- @types
- webpack
- tslint
- Ahead of Time
- github
- lite-server
- karma
- zone.jsのバグ?のため、動かない可能性が高い。優先度を下げる
- MacBookPro/OSX ElCapitan
- WebStorm 2016.2
- node v6.6.0
$ mkdir angular2-minimum && cd $_
git管理を開始し、非管理設定を追加。なお、コミット等のタイミングは特に指定しないので、適宜コミットしてください。
$ git init
$ touch .gitignore
.gitignore
node_modules
bin
package.json
$ npm init -y
$ npm install -S angular/{common,compiler,core,forms,http,platform-browser,platform-browser-dynamic,router} [email protected] [email protected] reflect-metadata core-js
@angular/{...}
はAngularを構成するモジュール群。form
,http
,router
は今回は必要ないが、普通のWebAppではよく使うので入れておく。- zone.jsとrxjsはangular2のPEER DEPENDENCY
- reflect-metadata?
- core-jsはES2015のpolyfill。必要か?
$ npm install -D typescript@beta tslint @types/es6-shim
$ touch tsconfig.json tslint.json
tsconfig.json
"compilerOptions": {
"target": "es5",
"module": "commonjs",
"moduleResolution": "node",
"sourceMap": true,
"emitDecoratorMetadata": true,
"experimentalDecorators": true,
"removeComments": false,
"noImplicitAny": false,
"outDir": "./bin",
"rootDir": "./src",
"types": [
"es6-shim"
]
},
"exclude": [
"node_modules",
"bin"
]
}
tslint.json
{
"rules": {
"class-name": true,
"comment-format": [
true,
"check-space"
],
"curly": true,
"eofline": false,
"forin": true,
"indent": [
true,
"spaces"
],
"label-position": true,
"label-undefined": true,
"max-line-length": [
true,
140
],
"member-access": false,
"member-ordering": [
true,
"static-before-instance",
"variables-before-functions"
],
"no-arg": true,
"no-bitwise": true,
"no-console": [
true,
"debug",
"info",
"time",
"timeEnd",
"trace"
],
"no-construct": true,
"no-debugger": true,
"no-duplicate-key": true,
"no-duplicate-variable": true,
"no-empty": false,
"no-eval": true,
"no-inferrable-types": true,
"no-shadowed-variable": true,
"no-string-literal": false,
"no-switch-case-fall-through": true,
"no-trailing-whitespace": true,
"no-unused-expression": true,
"no-unused-variable": true,
"no-unreachable": true,
"no-use-before-declare": true,
"no-var-keyword": true,
"object-literal-sort-keys": false,
"one-line": [
true,
"check-open-brace",
"check-catch",
"check-else",
"check-whitespace"
],
"quotemark": [
true,
"single"
],
"radix": true,
"semicolon": [
"always"
],
"triple-equals": [
true,
"allow-null-check"
],
"typedef-whitespace": [
true,
{
"call-signature": "nospace",
"index-signature": "nospace",
"parameter": "nospace",
"property-declaration": "nospace",
"variable-declaration": "nospace"
}
],
"variable-name": false,
"whitespace": [
true,
"check-branch",
"check-decl",
"check-operator",
"check-separator",
"check-type"
]
}
}
トランスパイルはwebpackが実行するので、tsc
コマンドの設定は不要。
$ npm install -D webpack@beta ts-loader tslint-loader
$ touch webpack.config.js
webpack.config.js
'use strict';
let path = require('path');
module.exports = {
entry: {
'bootstrap': './src/main.ts',
'bootstrap.aot': './src/main.aot.ts'
},
output: {
path: './bin',
filename: '[name].bundle.js'
},
module: {
preLoaders: [{
test: /\.ts$/,
loader: 'tslint',
query: {
configFileName: 'tsconfig.json'
}
}],
loaders: [
{
test: /\.ts$/,
loader: 'ts',
query: {
configFileName: 'tsconfig.json'
}
}
]
},
resolve: {
root: [ path.join(__dirname, 'src') ],
extensions: ['', '.ts', '.js']
},
devtool: 'source-map'
};
package.json
"scripts": {
"webpack": "webpack --config webpack.config.js"
}
$ npm install -D lite-server
$ touch bs-config.json
bs-config.json
{
"port": 8000,
"files": ["./**/*.{html,htm,css,js}"],
"server": {
"baseDir": [
"./src/",
"./bin/"
],
"routes": {
"/node_modules": "node_modules"
}
}
}
package.json
"scripts": {
"lite": "lite-server -c bs-config.js",
"start": "npm run webpack && npm run lite"
}
Hello Worldアプリ
$ mkdir src src/modules src/components
- src: Angularアプリ資産の格納先
- src/modules: モジュールクラスを格納
- src/components: コンポーネントクラスを格納
ディレクトリ構成は悩み中
$ touch src/index.html src/main.ts
index.html
<!doctype html>
<html lang="ja">
<head>
<meta charset="UTF-8">
<base href="/">
<title>Angular2 Minimum</title>
</head>
<body>
<!-- 1. Display the application -->
<my-app>Loading...</my-app>
<!-- 2. Load libraries -->
<script src="node_modules/zone.js/dist/zone.js"></script>
<script src="node_modules/reflect-metadata/Reflect.js"></script>
<!-- 3. Configure SystemJS -->
<script src="bootstrap.bundle.js"></script>
</body>
</html>
base
要素は必須script
要素はmy-app
要素より後に記述することbootstrap.bundle.js
はwebpackが生成する
main.ts
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { AppModule } from './modules/app.module';
platformBrowserDynamic().bootstrapModule(AppModule);
$ touch src/modules/app.module.ts
app.module.ts
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from '../components/app.component';
@NgModule({
imports: [
BrowserModule
],
declarations: [
AppComponent,
],
bootstrap: [ AppComponent ]
})
export class AppModule {
}
$ touch src/components/app.component.ts
app.component.ts
import { Component } from '@angular/core';
@Component({
selector: 'my-app',
template: `
<h1>{{title}}</h1>
`,
})
export class AppComponent {
title:string = 'Hello World!';
}
npm start
$ npm install -S @angular/{compiler-cli,platform-server}
$ npm install -D @types/node
$ touch tsconfig.aot.json
tsconfig.aot.json
{
"compilerOptions": {
"target": "es2015",
"module": "es2015",
"moduleResolution": "node",
"declaration": false,
"removeComments": true,
"emitDecoratorMetadata": true,
"experimentalDecorators": true,
"sourceMap": true,
"pretty": true,
"allowUnreachableCode": false,
"allowUnusedLabels": false,
"noImplicitAny": true,
"noImplicitReturns": true,
"noImplicitUseStrict": false,
"noFallthroughCasesInSwitch": true,
"outDir": "./bin",
"rootDir": "./src",
"types": [
"node"
]
},
"angularCompilerOptions": {
"debug": true
},
"compileOnSave": false,
"files": [
"src/main.ts"
],
"exclude": [
"node_modules",
"bin"
]
}
webpack.config.js
(entpryを修正)
entry: {
'bootstrap': './src/main.ts',
'bootstrap.aot': './src/main.aot.ts'
},
package.json
"scripts": {
"ngc": "ngc -p ./tsconfig.aot.json",
"start:ngc": "npm run ngc && npm start"
}
src/index.html
<!-- 3. Configure SystemJS -->
<!--<script src="bootstrap.bundle.js"></script>-->
<script src="bootstrap.aot.bundle.js"></script>
$ touch src/main.aot.ts
src/main.aot.ts
import { platformBrowser } from '@angular/platform-browser';
import { AppModuleNgFactory } from './modules/app.module.ngfactory';
const platform = platformBrowser();
platform.bootstrapModuleFactory(AppModuleNgFactory);
modules/app.module.ngfactory
は存在しないのでエラーが出る。ngc
コマンドでngfactory
を生成する。
$ npm run ngc
*.ngfactory.ts
はgitから除外しておく。
.gitignore
*.ngfactory.ts
$ npm run start:aot
aotありの場合、生成されたbundleファイルサイズが半分くらいになっているはず。