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Learning Angular

Learning Angular

By : Aristeidis Bampakos, Pablo Deeleman
3.4 (16)
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Learning Angular

Learning Angular

3.4 (16)
By: Aristeidis Bampakos, Pablo Deeleman

Overview of this book

Angular, loved by millions of web developers around the world, continues to be one of the top JavaScript frameworks thanks to its regular updates and new features that enable fast, cross-platform, and secure frontend web development. With Angular, you can achieve high performance using the latest web techniques and extensive integration with web tools and integrated development environments (IDEs). Updated to Angular 10, this third edition of the Learning Angular book covers new features and modern web development practices to address the current frontend web development landscape. If you are new to Angular, this book will give you a comprehensive introduction to help you get you up and running in no time. You'll learn how to develop apps by harnessing the power of the Angular command-line interface (CLI), write unit tests, style your apps by following the Material Design guidelines, and finally deploy them to a hosting provider. The book is especially useful for beginners to get to grips with the bare bones of the framework needed to start developing Angular apps. By the end of this book, you’ll not only be able to create Angular applications with TypeScript from scratch but also enhance your coding skills with best practices.
Table of Contents (19 chapters)
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1
Section 1: Getting Started with Angular
4
Section 2: Components – the Basic Building Blocks of an Angular App
9
Section 3: User Experience and Testability
15
Section 4: Deployment and Practice

Transforming elements using directives

The Angular framework includes a set of ready-made structural directives that we can start using straight away in our apps:

  • ngIf adds or removes a portion of the DOM tree based on an expression.
  • ngFor iterates through a list of items and binds each item to a template.
  • ngSwitch switches between templates within a specific set and displays each one depending on a condition.

We describe each one of them in the following sections.

Displaying data conditionally

The ngIf directive adds or removes an HTML element in the DOM, based on the evaluation of an expression. If the expression evaluates to true, the element is inserted into the DOM. Otherwise, the element is removed from the DOM. We could enhance our hero component from the previous chapter by leveraging this directive:

<p *ngIf="name === 'Boothstomper'">{{name}} hero works!</p>

When the name property of...

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