Angular 6 is here, and we are super excited! This book allows us to reach out to you and lend a helping hand in your quest to learn Angular. Angular has gone mainstream and has become the ubiquitous platform for web and mobile development.
If you are an AngularJS developer, then there is loads of exciting stuff to learn, and there is a whole new world to explore for developers getting started. Getting started with Angular can be overwhelming even for a seasoned AngularJS developer. Too many terms will be thrown at you: such as TypeScript, Transpiler, Shim, Observable, Immutable, Modules, Exports, Decorators, Components, Web Component, and Shadow DOM. Relax! We are trying to embrace the modern web, and everything new that is here is to make our lives easier. Lots of these concepts are not specific to Angular itself but highlight the direction in which the web platform development is moving. We will try our best to present these concepts in a clear and concise manner, helping everyone understand how these pieces fit into this big ecosystem. Learning by examples has its advantages, for example, you will immediately get to see the concept explained in action. This book follows the same pattern as its predecessor. Using the Do It Yourself (DIY) approach, we build multiple simple and complex applications using Angular.
Angular helps you build faster, more efficient, and more flexible cross-platform applications. Angular is now at release 6, with significant changes through its previous versions. This is a unique web development book that will help you get to grips with Angular and explore a powerful solution for developing single page applications.
Chapter 1, Getting Started, introduces you to the Angular framework. We create a super simple app in Angular that highlights some core features of the framework.
Chapter 2, Building Our First App – 7 Minute Workout, teaches us how to build our first real Angular app. In the process, we will learn more about one of the primary building blocks of Angular, components. We will also be introduced to Angular’s templating constructs, databinding capabilities, and services.
Chapter 3, More Angular – SPA and Routing, covers the routing constructs in the framework where we build multiple pages for 7 Minute Workout. This chapter also explores a number of patterns around inter-component communication.
Chapter 4, Personal Trainer, introduces a new exercise where we morph the 7 Minute workout into a generic Personal Trainer app. This app has the capability to create new workout plans other than the original 7 minute workout. This chapter covers Angular’s form capabilities and how we can use them to build custom workouts.
Chapter 5, Supporting Server Data Persistence, deals with saving and retrieving workout data from the server. We augment Personal Trainer with persistence capabilities as we explore Angular's http client library and how it uses RxJS Observables.
Chapter 6, Angular Directives in Depth, goes deep into the inner workings of Angular directives and components. We build a number of directives to support Personal Trainer.
Chapter 7, Testing Personal Trainer, introduces you to the testing world in Angular. You build a suite of unit and end-to-end tests that verify the working of Personal Trainer.
Chapter 8, Some Practical Scenarios, provides some practical tips and guidance around scenarios that we might encounter while developing apps on this framework. We cover scenarios such as authentication and authorization, performance, and the most important case, migrating apps from AngularJS to the latest version of Angular.
We will be building our apps in the TypeScript language; therefore, it would be preferable if you have an IDE that makes development with TypeScript easy. IDEs such as Atom, Sublime, WebStorm, and Visual Studio (or VS Code) are great tools for this purpose.
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There are a number of text conventions used throughout this book.
CodeInText: Indicates code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles. Here is an example: "We can see how the router combines the routes in app.routes.ts with the default route in workout-builder.routes.ts".
A block of code is set as follows:
"styles": [ "node_modules/bootstrap/dist/css/bootstrap.min.css", "src/styles.css" ],
When we wish to draw your attention to a particular part of a code block, the relevant lines or items are set in bold:
const routes: Routes = [
...
{ path: 'builder', loadChildren: './workout-builder/workout-builder.module#WorkoutBuilderModule'},
{ path: '**', redirectTo: '/start' }
];Any command-line input or output is written as follows:
ng new guessthenumber --inlineTemplateBold: Indicates a new term, an important word, or words that you see onscreen. For example, words in menus or dialog boxes appear in the text like this. Here is an example: "With the Developer tools open in the Sources tab"
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