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Getting Started with Angular - Second edition

You're reading from   Getting Started with Angular - Second edition Fast-track your web development skills to build high performance SPA with Angular 2 and beyond

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Product type Paperback
Published in Feb 2017
Publisher Packt
ISBN-13 9781787125278
Length 278 pages
Edition 2nd Edition
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Author (1):
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Minko Gechev Minko Gechev
Author Profile Icon Minko Gechev
Minko Gechev
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Table of Contents (9) Chapters Close

Preface 1. Get Going with Angular 2. The Building Blocks of an Angular Application FREE CHAPTER 3. TypeScript Crash Course 4. Getting Started with Angular Components and Directives 5. Dependency Injection in Angular 6. Working with the Angular Router and Forms 7. Explaining Pipes and Communicating with RESTful Services 8. Tooling and Development Experience

AoT compilation in Angular

In this section, we'll briefly explain what AoT compilation is in the context of Angular and what implication it may have on our projects, without going into deep technical details. 

The key focus in Angular is it's extremely fast change detection mechanism. After exploring different options for performing change detection, the Angular team discovered that the change detection mechanism used in AngularJS can be improved dramatically using code generation. It turns out that generating code, which performs change detection and rendering and on top of that is very well optimized for the JavaScript virtual machine, runs much faster compared to the traditional (also known as dynamic) change detection mechanism.

How code generation works

The Angular code generator is known as the Angular compiler. What it does is compile the templates of the Angular components to JavaScript or TypeScript (depending on the use case). When we compile...

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