[Angular 2] Start with Angular2

Create a index.html:

<!DOCTYPE html>
<html>
<head>
    <title>Really Understanding Angular 2 - The Fundamentals</title>
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <link rel="shortcut icon" href="/favicon.ico" type="image/x-icon"/>
    <link href="//fonts.googleapis.com/css?family=Roboto:400,300,500,400italic,700" rel="stylesheet"  type="text/css">
    <link href="//fonts.googleapis.com/icon?family=Material+Icons" rel="stylesheet">
    <link rel="stylesheet" href="https://angular-academy.s3-us-west-1.amazonaws.com/styles/angular-academy-lessons-theme-v1.css">

    <!-- Polyfill(s) for older browsers -->
    <script src="https://npmcdn.com/core-js/client/shim.min.js"></script>

    <script src="https://npmcdn.com/zone.js@0.6.12?main=browser"></script>
    <script src="https://npmcdn.com/reflect-metadata@0.1.3"></script>
    <script src="https://npmcdn.com/systemjs@0.19.27/dist/system.src.js"></script>
    <script src="/system.config.js"></script>
    <script>
        document.SYSTEMJS_CONFIG.map.app = '.';
        document.SYSTEMJS_CONFIG.packages.app = {main: 'hello_world.ts', defaultExtension: 'ts'};
        System.config(document.SYSTEMJS_CONFIG);
        System.import('app').catch(function (err) {
            console.error(err);
        });
    </script>
</head>
<body>
    <header class="l-header v-center-parent">
        <img class="v-center" src="//material.angularjs.org/latest/img/icons/angular-logo.svg">
    </header>
    <main class="l-main">
        <div class="l-course-logo"></div>
        <div class="l-course-title">Really Understanding Angular 2 - The Fundamentals</div>
        <div class="l-lesson-title">MVC Hello World Component - Controllers and Templates</div>
        <div class="l-course-content card card-strong lesson-1">
            <!-- Insert your module here -->
        </div>
    </main>
</body>
</html>

Index.html works as an App Shell, which render meanful pixel onto the screen. And our module will be rendered when the data binding is ready.

Create first Module:

This module will bootstrap our application, normally this only happen once. This is the main entry point of the whole application.

import {Component, NgModule} from "@angular/core";
import {platformBrowserDynamic} from "@angular/platform-browser-dynamic";
import {BrowserModule} from "@angular/platform-browser";
@Component({
    selector: 'app',
    template: `<h1>Hello Angular 2</h1>`
})
export class App{

}

/*
* Declare the NgModule
* */
@NgModule({
    declarations: [App],       // tell which component will be include into this module
    imports: [BrowserModule],  // if building web app, we need to use BrowserModule, native mobile app use other module
    bootstrap: [App]           // App component will be the entry point of the whole application
})
export class AppModule{

}

// Bootstrap the AppModule
platformBrowserDynamic().bootstrapModule(AppModule);

Last insert out App into html:

        <div class="l-course-content card card-strong lesson-1">
            <app></app>
        </div>