Book Image

Learning Angular for .NET Developers

By : Rajesh Gunasundaram
Book Image

Learning Angular for .NET Developers

By: Rajesh Gunasundaram

Overview of this book

Are you are looking for a better, more efficient, and more powerful way of building front-end web applications? Well, look no further, you have come to the right place! This book comprehensively integrates Angular version 4 into your tool belt, then runs you through all the new options you now have on hand for your web apps without bogging you down. The frameworks, tools, and libraries mentioned here will make your work productive and minimize the friction usually associated with building server-side web applications. Starting off with building blocks of Angular version 4, we gradually move into integrating TypeScript and ES6. You will get confident in building single page applications and using Angular for prototyping components. You will then move on to building web services and full-stack web application using ASP.NET WebAPI. Finally, you will learn the development process focused on rapid delivery and testability for all application layers.
Table of Contents (16 chapters)
Title Page
About the Author
About the Reviewers
Customer Feedback

Basic types

In a programming language, we deal with various small units of data, such as numbers, sting, and Boolean values. TypeScript supports these types of data, as in JavaScript, with enumeration and structure types.


The boolean data type can hold either true or false. Declaring and initializing this data type is quite easy and is illustrated as follows:

let isSaved: boolean = false; 

Here, the isSaved variable is declared as boolean and is assigned with the value false. If the developer assigns a string value to the isSaved variable by mistake, the TypeScript will show an error and highlight the statement.


The number data type holds floating-point values. Similar to JavaScript, TypeScript considers all numbers as floating-point values. Declaring and initializing the number data type variable can be done as follows:

let price: number = 101; 

Here, the price variable is declared as number and is assigned the value 101. Number type can hold values such as decimal, binary, hexadecimal...