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 tooltip component

Angular 2's ability to bind to element properties and events without the need for custom directives enables us to integrate with third-party code easily. Bootstrap uses some custom attributes to make the tooltip work. We can use it as is. Open app.component.ts and add the bootstrap attributes to the heading to display a tooltip from the bottom. We also need to leverage the AfterViewInit hook to initialize the tooltip when the template is rendered:

import { Component, AfterViewInit } from '@angular/core';
import 'expose?jQuery!jquery';
import 'bootstrap';
import * as $ from 'jquery';

  selector: 'app-root',
  template: `
    <h1 data-toggle="tooltip"
        title="A Tooltip on the right">Angular2 components</h1>
export class AppComponent implements AfterViewInit {
  ngAfterViewInit() {

Now, let's open the browser and test it. Hover over the title and...