Book Image

Mastering Angular Components - Second Edition

By : Gion Kunz
Book Image

Mastering Angular Components - Second Edition

By: Gion Kunz

Overview of this book

Mastering Angular Components will help you learn how to invent, build, and manage shared and reusable components for your web projects. Angular components are an integral part of any Angular app and are responsible for performing specific tasks in controlling the user interface. Complete with detailed explanations of essential concepts and practical examples, the book begins by helping you build basic layout components, along with developing a fully functional task-management application using Angular. You’ll then learn how to create layout components and build clean data and state architecture for your application. The book will even help you understand component-based routing and create components that render Scalable Vector Graphics (SVG). Toward the concluding chapters, you’ll be able to visualize data using the third-party library Chartist and create a plugin architecture using Angular components. By the end of this book, you will have mastered the component-based architecture in Angular and have the skills you need to build modern and clean user interfaces.
Table of Contents (12 chapters)

An introduction to Jasmine and Karma

Jasmine is a very simple testing framework that comes with an API; it allows you to write Behavior-Driven Development (BDD) style tests. BDD is an agile software development process for defining specifications in a written format.

In BDD, we define that an agile user story consists of multiple scenarios. These scenarios closely relate to, or even replace, the acceptance criteria of a story. They define requirements on a higher level, and they are mostly written narratives. Each scenario consists of three parts:

  • Given: This part is used to describe the initial state of the scenario. The test code is where we perform all of the setup that is needed to execute the test scenario.
  • When: This part reflects the changes that we perform on the system being tested. Usually, this part consists of some API calls and actions that reflect the behavior of...