.callout.is-helpful header Angular is in developer preview p. This quickstart does not reflect the final development process for Angular. The following setup is for those who want to try out Angular while it is in developer preview. // STEP 1 - Create a project ########################## .l-main-section h2#section-create-project 1. Create a project p. This quickstart shows how to write your Angular components in TypeScript. You could instead choose another language such as Dart, ES5, or ES6. p. The goal of this quickstart is to write a component in TypeScript that prints a string. To get started, clone the TypeScript quickstart repository: pre.prettyprint $ git clone https://github.com/angular/ts-quickstart.git $ cd ts-quickstart p. For the sake of this quickstart we recommend using the quickstart GitHub repository. This repository provides a faster start than building from npm. This repository includes the Angular distribution and type definitions for TypeScript. p. Create two files, index.html and app.ts, both at the root of the project: pre.prettyprint $ touch app.ts index.html // STEP 2 - Start the TypeScript compiler ########################## .l-main-section h2#start-tsc 2. Run the TypeScript compiler p. Since the browser doesn't understand TypeScript code, we need to run a compiler to translate your code to browser-compliant JavaScript as you work. This quickstart uses the TypeScript compiler in --watch mode, but it is also possible to do the translation in the browser as files are loaded, or configure your editor or IDE to do it. p. The repository includes a file tsconfig.json. Many tools — including the TypeScript compiler — know to read this file so we don't need to configure them or add command-line options. pre.prettyprint $ npm install -g typescript@^1.5.0-beta $ tsc --watch // STEP 3 - Import Angular ########################## .l-main-section h2#section-transpile 3. Import Angular p Inside of app.ts, import the type definitions from Angular: pre.prettyprint code /// <reference path="typings/angular2/angular2.d.ts" /> p Now your editor should be able to complete the available imports: pre.prettyprint code import {Component, View, bootstrap} from 'angular2/angular2'; p. The above import statement uses ES6 module syntax to import three symbols from the Angular module. The module will load at runtime. // STEP 4 - Create a component ########################## .l-main-section h2#section-angular-create-account 4. Define a component p. Components structure and represent the UI. This quickstart demonstrates the process of creating a component that has an HTML tag named <my-app>. p. A component consists of two parts, the component controller which is an ES6 class, and the decorators which tell Angular how to place the component into the page. pre.prettyprint.linenums code. // Annotation section @Component({ selector: 'my-app' }) @View({ template: '<h1>Hello {{ name }}</h1>' }) // Component controller class MyAppComponent { name: string; constructor() { this.name = 'Alice'; } } .l-sub-section h3 @Component and @View annotations p. A component annotation describes details about the component. An annotation can be identified by its at-sign (@). p. The @Component annotation defines the HTML tag for the component by specifying the component's CSS selector. p. The @View annotation defines the HTML that represents the component. The component you wrote uses an inline template, but you can also have an external template. To use an external template, specify a templateUrl property and give it the path to the HTML file. pre.prettyprint.linenums code. @Component({ selector: 'my-app' // Defines the <my-app></my-app> tag }) @View({ template: '<h1>Hello {{ name }}</h1>' // Defines the inline template for the component }) p. The annotations above specify an HTML tag of <my-app> and a template of <h1>Hello {{ name }}</h1>. .l-sub-section h3 The template and the component controller p. The component controller is the backing of the component's template. This component controller uses TypeScript class syntax. pre.prettyprint.linenums code. class MyAppComponent { name: string; constructor() { this.name = 'Alice'; } } p. Templates read from their component controllers. Templates have access to any properties or functions placed on the component controller. p. The template above binds to a name property through the double-mustache syntax ({{ ... }}). The body of the constructor assigns "Alice" to the name property. When the template renders, "Hello Alice" appears instead of "Hello {{ name }}". // STEP 5 - Bootstrap ########################## .l-main-section h2#section-transpile 5. Bootstrap p. At the bottom of app.ts, call the bootstrap() function to load your new component into its page: pre.prettyprint.linenums code bootstrap(MyAppComponent); p. The bootstrap() function takes a component as a parameter, enabling the component (as well as any child components it contains) to render. // STEP 6 - Declare the HTML ########################## .l-main-section h2#section-angular-create-account 6. Declare the HTML p. Inside the head tag of index.html, include the traceur-runtime and the Angular bundle. Instantiate the my-app component in the body. pre.prettyprint.linenums code. <!-- index.html --> <html> <head> <title>Angular 2 Quickstart</title> <script src="https://github.jspm.io/jmcriffey/bower-traceur-runtime@0.0.87/traceur-runtime.js"></script> <script src="bundle/angular2.dev.js"></script> </head> <body> <!-- The app component created in app.ts --> <my-app></my-app> </body> </html> // STEP 7 - Declare the HTML ########################## .l-main-section h2#section-load-component-module 7. Load the component p. The last step is to load the module for the my-app component. To do this, we'll use the System library. .l-sub-section h3 System.js p. System is a third-party open-source library that adds ES6 module loading functionality to browsers. p. Add the System.js dependency in the <head> tag, so that it looks like: pre.prettyprint.linenums code. <head> <title>Angular 2 Quickstart</title> <script src="https://github.jspm.io/jmcriffey/bower-traceur-runtime@0.0.87/traceur-runtime.js"></script> <script src="https://jspm.io/system@0.16.js"></script> <script src="bundle/angular2.dev.js"></script> </head> p. Add the following module-loading code before the <my-app> tag: pre.prettyprint.linenums code. <my-app></my-app> <script>System.import('app');</script> // STEP 8 - Run a local server ########################## .l-main-section h2#section-load-component-module 8. Run a local server p Run a local HTTP server, and view index.html. p. If you don't already have an HTTP server, you can install one using npm install -g http-server. (If that results in an access error, then you might need to use sudo npm ...) For example: pre.prettyprint.code. # From the directory that contains index.html: npm install -g http-server # Or sudo npm install -g http-server http-server # Creates a server at localhost:8080 # In a browser, visit localhost:8080/index.html // WHAT'S NEXT... ########################## .l-main-section h2#section-transpile Great job! We'll have the next steps out soon.