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 complex form with input validation

In this section, you will build an app to demonstrate form validation using ngForm and ngControl. Here is a screenshot of the form:

If the user tries to submit without providing valid information, the form will show the following error:

Basically, the Name field is required. The Phone field is the number type, but is optional. The Comment field is required and the user must enter at least four characters. Of course, this is just for demonstration of the input length. The user, finally, must agree to the terms and conditions via the toggle input.

After a successful validation, the user will be taken to the second screen with a summary of the previous screen, as illustrated in the following screenshot:

Getting ready

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