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Angular 2 Components
Angular 2 Components

Angular 2 Components: Practical and easy-to-follow guide to Angular 2 Components

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Profile Icon Templier Thierry
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€19.99 €24.99
Paperback Nov 2016 124 pages 1st Edition
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Arrow left icon
Profile Icon Templier Thierry
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Paperback Nov 2016 124 pages 1st Edition
eBook
€17.99 €19.99
Paperback
€19.99 €24.99
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Renews at €18.99p/m
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€17.99 €19.99
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Angular 2 Components

Chapter 2. Setting Up an Angular 2 Development Environment with angular-cli

Angular 2 takes advantage of modern web technologies and tools, which means the development environment becomes more sophisticated and requires some tools and their understanding.

Luckily, we don't need to spend time installing and configuring all the required dependencies and wiring everything together. We can use the angular-cli (command-line tool) that is being developed in parallel with Angular 2.

In this chapter, we will walk through setting up our development environment with angular-cli: how to install it and how to use it to kickstart our Angular 2 project in minutes.

Node and npm

Before we can start using angular-cli, we need to install Node.js on our machine. Node is a JavaScript runtime built on Chrome's V8 JavaScript engine. It enables JavaScript to run without a browser, which leads to the development of many development tools that we use today, such as task runners, compilers, linters, and module loaders. The modern web frontend development environment relies on these tools.

Installing Node

Node is cross-platform, so it can run on any popular operating system. The easiest way to install node is by downloading the official installer for your operating system. To do this, go to https://nodejs.org/en/ and find the official installer for Windows, Macintosh, or Linux. Currently, Node releases have two major paths—a Long Time Support (LTS) and a stable version. For this book, we will use the LTS version of Node. Make sure to download the Node 4.24.53 LTS version installer.

After you download and run the installer successfully, open your terminal...

Installing angular-cli

We will use npm to install angular-cli on our workstation. To do so, follow these simple steps:

  1. Launch the Terminal (or command line in Windows).
  2. Type: npm install -g angular-cli@latest and press Enter (in Windows, you might need to run this command as an administrator).

That's it! The angular-cli is now installed on your machine, and, because we used the flag -g with our npm install command, angular-cli exposed an ng alias that is available from anywhere. (-g stands for global, which means the module was installed on a system-level directory).

Generating an Angular 2 project

The first command that we will use with angular-cli is new. This command will create a folder structure for our project and install all the required dependencies. Along with the basic Angular 2 files and modules, angular-cli will install modules for testing, linting, and documenting our code. This book is all about components, so we won't touch most of this stuff. You can read more about the available commands on the official angular-cli page: https://cli.angular.io/.

To generate a new project, follow these steps:

  1. Launch the Terminal (or command-line in Windows).
  2. Type ng new ng_components and press Enter.

The angular-cli software will generate a new project under the current directory:

Generating an Angular 2 project

Note that the last line prints: Installing packages for tooling via npm. The angular-cli tool will download all the required modules using standard npm command behind the scenes.

That's it! You just generated a complete Angular 2 project with everything you need already...

Choosing an IDE

While Angular 2 applications can be developed with a plain text editor, working with an IDE (integrated develop environment) is highly recommended. Personally, I'm using webstorm (https://www.jetbrains.com/webstorm/), which offers complete support for Angular out of the box. If you are looking for a free, open source alternative, we have VSCode (https://code.visualstudio.com/), which also supports Angular 2 naturally. Both of them offer Angular code inspection and highlighting along with refactoring and autocomplete features. WebStorm offers a complete integration with almost every JavaScript tool out there and is considered by many to be the best JavaScript IDE out there.

Summary

In this chapter, we learned how to use angular-cli to create, configure, and serve a new Angular 2 project in minutes. This tool is helping us as developers to focus on our application code rather than on configurations.

In the next chapter, we will get familiar with the TypeScript language, focusing on the important features for building Angular 2 components (and all the rest of the project).

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Key benefits

  • First look to the Angular 2 Components architecture
  • Creating your own Angular 2 Component
  • Integrating your components with third party components

Description

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.

Who is this book for?

If you are a front-end developer with some experience in Angular and want to understand Angular 2 Components, and easily put it to use to create powerful user interfaces and views, then this book is for you

What you will learn

  • • Break your application into reusable dynamic components
  • • Take advantage of TypeScript in Angular 2
  • • Migrate your Angular 1 directive to an Angular 2 Component
  • • Understand the Angular 2 component structure and APIs
  • • Hook to component life cycle events
  • • Bind dynamic data to your component properties
  • • Communicate with other components using events
  • • Compose complicated UIs from simple components
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Table of Contents

10 Chapters
1. Angular 2 Component Architecture Chevron down icon Chevron up icon
2. Setting Up an Angular 2 Development Environment with angular-cli Chevron down icon Chevron up icon
3. The TypeScript Primer Chevron down icon Chevron up icon
4. Building a Basic Component Chevron down icon Chevron up icon
5. Building Dynamic Components Chevron down icon Chevron up icon
6. Component Communication Chevron down icon Chevron up icon
7. Putting It All Together Chevron down icon Chevron up icon
8. Integrating Third-Party Components Chevron down icon Chevron up icon
9. Angular 2 Directives Chevron down icon Chevron up icon
Index Chevron down icon Chevron up icon
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