docs(devguide): First pass through chapter 1
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Naomi Black
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<?xml version="1.0" encoding="UTF-8"?>
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<project version="4">
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<component name="ProjectCodeStyleSettingsManager">
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<option name="PER_PROJECT_SETTINGS">
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<value />
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</option>
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<option name="PREFERRED_PROJECT_CODE_STYLE" value="Default (1)" />
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</component>
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</project>
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"_listtype": "ordered",
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"setup": {
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"title": "Setup"
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"title": "Getting Started"
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},
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.l-main-section
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p.
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<strong>Angular is still unpackaged and in alpha</strong>. This quickstart does not
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reflect the final build process for Angular. The following setup is for those who
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want to try out Angular while it is in alpha.
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<strong>Mission:</strong> By the end of this chapter, you should be able to get an Angular 2 component to appear on
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the page.
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.l-sub-section
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h3#section-examples Examples:
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ul
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li
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a(href='http://plnkr.co/edit/MRz2i7sjupzxERPAa3SF?p=preview') TypeScript
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li
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a(href='http://plnkr.co/edit/wzzKo4etk24t0oAnL6ep?p=preview') ES5
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.l-main-section
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h2#section-create-project 1. Create a project
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h2#section-install-or-plunker Install Angular or Use Plunker
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p There are four steps to create any Angular app:
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ul
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li Create an entry point HTML file where users will start
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li Load the Angular library at the top of the file
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li Make a root component for your application
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li Bootstrap Angular
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p.
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The goal of this quickstart is to create a component that renders "Hello Alice" to the page.
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To get started, create a new directory.
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You can edit and test out your apps either though serving local files through a web server or through a service like
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Plunker.
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p.
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For Plunker, just use the <a href="http://plnkr.co/edit/?p=preview">starter template</a> to get going. If you're
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serving local files, edit and save them and start a web server that serves files in that directory. If you have
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Python installed, you can run a basic HTTP server from the root of your code directory with:
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pre.prettyprint.lang-bash
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code python -m SimpleHTTPServer 8000
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.l-main-section
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h2#section-add-es6-shim 2. Clone the quickstart repository
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h2#section-create-an-entry-point Create an entry point
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p.
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Create an <code>index.html</code> file and add the Angular library tags and a <code>main.js</code> file where
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you'll build your first component.
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p Within your project, clone the quickstart repository:
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p.
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In the <code><body></code>, add an element called <code><my-app></code> that will be the root of your
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application.
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pre.prettyprint
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code git clone https://github.com/angular/quickstart.git
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pre.prettyprint.lang-html
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code.
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//ES5
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<!DOCTYPE html>
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<html>
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<head>
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<script src="https://code.angularjs.org/2.0.0-alpha.19/angular2.sfx.dev.js"></script>
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<script src="main.js"></script>
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</head>
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<body>
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</body>
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</html>
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pre.prettyprint.lang-html
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code.
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//TypeScript
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<!DOCTYPE html>
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<html>
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<head>
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<link rel="stylesheet" href="style.css">
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<script src="https://jspm.io/system@0.16.js"></script>
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<script src="https://code.angularjs.org/2.0.0-alpha.19/angular2.dev.js"></script>
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</head>
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<body>
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<my-app></my-app>
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<script>
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System.config({
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paths: {
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'*': '*.js',
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'angular2/*': 'angular2/*',
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}
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});
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System.import('main');
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</script>
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</body>
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</html>
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.callout.is-helpful
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header Don't use code.angularjs.org in a live app
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p.
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This example serves the Angular library from <a href="http://code.angularjs.org">code.angularjs.org</a>. This is
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fine for examples, but you'd want to serve it yourself or use a CDN for real deployment.
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// WHAT'S NEXT... ##########################
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.l-main-section
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h2#section-transpile Great job! We'll have the next steps out soon.
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h2#section-set-up-the-starting-component Set up the starting component
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p.
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In <code>main.js</code>, create a class called <code>AppComponent</code>, configure it to bind to the
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<code><my-app></code> element in <code>index.html</code>, and call Angular's <code>bootstrap()</code> to kick
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it all off like this:
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pre.prettyprint.lang-javascript
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code.
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//ES5
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function AppComponent() {}
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AppComponent.annotations = [
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new angular.Component({
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selector: 'my-app'
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}),
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new angular.View({
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template: '<h1>My first Angular 2 App</h1>'
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})
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];
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document.addEventListener('DOMContentLoaded', function() {
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angular.bootstrap(AppComponent);
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});
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pre.prettyprint.lang-typescript
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code.
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//TypeScript
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import {Component, View, bootstrap} from 'angular2/angular2';
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@Component({
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selector: 'my-app'
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})
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@View({
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template: '<h1>My first Angular 2 App</h1>'
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})
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class AppComponent {
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}
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bootstrap(AppComponent);
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.l-main-section
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h2#section-run-it Run it!
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p.
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Open <code>index.html</code> through your web server or hit the <strong>Run</strong> button if using Plunker and
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you should see:
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div(align='center')
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img(src='setup-example1.png')
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.l-main-section
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h2#section-explanations Explanations
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p This basic Angular app contains the structure for any app you'll build.
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p.
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You can think of Angular apps as a tree of components. This root component we've been talking about acts as the top
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level container for the rest of your application. You've named this one <code>AppComponent</code>, but there's
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nothing special about the name and you can use whatever makes sense to you.
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p.
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The root component's job is to give a location in the <code>index.html</code> file where your application will
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render through it's element, in this case <code><my-app></code>. There is also nothing special about this
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element name and you can pick it as you like.
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p.
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The root component loads the initial template for the application that will load other components to perform
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whatever functions your application needs - menu bars, views, forms, etc. We'll walk through examples of all of
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these in the following pages.
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p Exciting! Not excited yet? Let's move on to <a href="displaying-data.html">Displaying Data</a>.
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