Book Image

Angular 2 Components

By : Thierry Templier Thierry
Book Image

Angular 2 Components

By: Thierry Templier Thierry

Overview of this book

This book is a concise guide to Angular 2 Components and is based on the stable version of Angular 2. You will start with learning about the Angular 2 Components architecture and how components differ from Angular directives in Angular 1. You will then move on to quickly set up an Angular 2 development environment and grasp the basics of TypeScript. With this strong foundation in place, you will start building components. The book will teach you, with an example, how to define component behavior, create component templates, and use the controller of your component. You will also learn how to make your components communicate with each other. Once you have built a component, you will learn how to extend it by integrating third-party components with it. By the end of the book, you will be confident with building and using components for your applications.
Table of Contents (16 chapters)
Angular 2 Components
About the Authors
About the Reviewers

Bootstrap collapse component

Let's try another example, but this time we will bind to events as well. For this example we will use another widget from the bootstrap library called collapse. In the components folder, create a new folder named collapse. Inside it, create a file named collapse.ts for our component and a file named collapse.html for the component template.

Open collapse.ts and paste the following code. This is an example collapse widget that was taken as-is from the bootstrap website (

import { Component, AfterViewInit } from '@angular/core';
import * as $ from 'jquery';

  selector: 'collapse',
  templateUrl: './collapse.html'

export class Collapse implements AfterViewInit {
  ngAfterViewInit() {

Open collapse.html and paste in the following:

<button class="btn btn-primary"