Book Image

Ionic Cookbook - Third Edition

By : Singh
Book Image

Ionic Cookbook - Third Edition

By: Singh

Overview of this book

Ionic is the preferred choice for JavaScript developers to develop real-time hybrid applications. This book will get you started with Ionic 3.9 and help you create Angular 5 components that interact with templates. You will work with Ionic components and find out how to share data efficiently between them. You'll discover how to make the best use of the REST API to handle back-end services and then move on to animating your application to make it look pretty. You then learn to add in a local push notification in order to test the app. Then you'll work with Cordova to support native functionalities on both iOS and Android. From there, you'll get to grips with using the default themes for each platform and customizing your own. We then take you through the advanced Ionic features like lazy loading, deep linking, localizing ionic apps etc. Finally, you'll see how best to deploy your app to different platforms. This book will solve all your Ionic-related issues through dedicated recipes that will help you get the best out of Ionic.
Table of Contents (12 chapters)

Creating a custom pipe

Pipes are also a feature of Angular and are not specific to Ionic. If you are familiar with Angular 1, a pipe is exactly the same thing as a filter. The main reason you might want to use pipes is to display data in a different format in the view. You don't want to change the actual value in the component. This makes things very convenient because you don't have to decide on the specific format within the code while leaving flexibility in the view layer. Here is a list of some useful built-in pipes (from https://angular.io/docs/ts/latest/api/#!?apiFilter=pipe):

  • AsyncPipe
  • DatePipe
  • NumberPipe
  • SlicePipe
  • DecimalPipe
  • JsonPipe
  • PercentPipe
  • UpperCasePipe
  • LowerCasePipe
  • CurrencyPipe
  • ReplacePipe

In this section, you will learn how to create a custom pipe using the @Pipe decorator. The following is a screenshot of the app:

While the app interface is very...