Book Image

TypeScript 2.x By Example

By : Sachin Ohri
Book Image

TypeScript 2.x By Example

By: Sachin Ohri

Overview of this book

The TypeScript language, compiler, and open source development toolset brings JavaScript development up to the enterprise level. It allows you to use ES5, ES6, and ES7 JavaScript language features today, including classes, interfaces, generics, modules, and more. Its simple typing syntax enables building large, robust applications using object-oriented techniques and industry-standard design principles. This book aims at teaching you how to get up and running with TypeScript development in the most practical way possible. Taking you through two exciting projects built from scratch, you will learn the basics of TypeScript, before progressing to functions, generics, promises, and callbacks. Then, you’ll get to implement object-oriented programming as well as optimize your applications with effective memory management. You’ll also learn to test and secure your applications, before deploying them. Starting with a basic SPA built using Angular, you will progress on to building, maybe, a Chat application or a cool application. You’ll also learn how to use NativeScript to build a cool mobile application. Each of these applications with be explained in detail, allowing you to grasp the concepts fast. By the end of this book, you will have not only built two amazing projects but you will also have the skills necessary to take your development to the next level.
Table of Contents (11 chapters)

The Trello homepage

Our homepage will be the landing screen for our application. On this page, we will show all the boards that are available in our application. Along with the board name, we'll also show the number of tasks on that board.

We will also provide an option for the user to add new boards to the application using the Create a new board link. Once a user creates a new board, he/she will be able to go to the board and add tasks and subtasks there.

To create a new component, use the following command:

ng generate component homepage

This command will generate our Homepage component, its specific template file, and a style sheet file. The functionality on our homepage is limited to displaying the board data and the total number of tasks, so the first thing that we should do is define the data models to be used in our application.