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Mastering TypeScript 3 - Third Edition

By : Nathan Rozentals

3 (1)

Buy this Book

Mastering TypeScript 3

3 (1)

By: Nathan Rozentals

Buy this Book

Overview of this book

TypeScript is both a language and a set of tools to generate JavaScript. It was designed by Anders Hejlsberg at Microsoft to help developers write enterprise-scale JavaScript. Starting with an introduction to the TypeScript language, before moving on to basic concepts, each section builds on previous knowledge in an incremental and easy-to-understand way. Advanced and powerful language features are all covered, including asynchronous programming techniques, decorators, and generics. This book explores many modern JavaScript and TypeScript frameworks side by side in order for the reader to learn their respective strengths and weaknesses. It will also thoroughly explore unit and integration testing for each framework. Best-of-breed applications utilize well-known design patterns in order to be scalable, maintainable, and testable. This book explores some of these object-oriented techniques and patterns, and shows real-world implementations. By the end of the book, you will have built a comprehensive, end-to-end web application to show how TypeScript language features, design patterns, and industry best practices can be brought together in a real-world scenario.

Preface

Who this book is for

What this book covers

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Free Chapter

TypeScript Tools and Framework Options

What is TypeScript?

TypeScript IDEs

Summary

Types, Variables, and Function Techniques

Basic types

Functions

Advanced types

Summary

Interfaces, Classes, and Inheritance

Interfaces

Classes

Inheritance

Using interfaces, classes, and inheritance – the Factory Design Pattern

Summary

Decorators, Generics, and Asynchronous Features

Decorators

Generics

Advanced types with generics

Asynchronous language features

Summary

Declaration Files and Strict Compiler Options

Global variables

Using JavaScript code blocks in HTML

Writing your own declaration file

Module merging

Declaration syntax reference

Strict compiler options

Summary

Third-Party Libraries

Using definition files

Using NuGet

Using npm and @types

Using third-party libraries

Backbone

Angular 1

Inheritance – Angular 1 versus Backbone

ExtJS

Summary

TypeScript Compatible Frameworks

What is MVC?

Using Backbone

Using Aurelia

Angular

Using React

Performance comparison

Summary

Test-Driven Development

Test-driven development

Unit, integration, and acceptance tests

Unit testing frameworks

Jasmine

Jasmine runners

Using continuous integration

Summary

Testing Typescript Compatible Frameworks

Testing our sample application

Backbone testing

Aurelia testing

Angular testing

React testing

Summary

Modularization

Module basics

AMD module loading

SystemJS module loading

Using Express with Node

AWS Lambda functions

Summary

Object-Oriented Programming

Object-oriented principles

User interface design

The State pattern

The Mediator pattern

Modular code

Summary

Dependency Injection

Sending mail

Building a dependency injector

Decorator injection

Summary

Building Applications

Node and Angular integration

The UI experience

Authentication

External authentication

Summary

Let's Get Our Hands Dirty

Board Sales application

Database-driven APIs

The BoardSales application

The Domain Events design pattern

Summary

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Testing Typescript Compatible Frameworks

In Chapter 7, TypeScript Compatible Frameworks, we discussed TypeScript compatible frameworks, and explored how Backbone, Aurelia, Angular, and React use the MVC or the MV* design patterns to write models, views, and controllers. We implemented the same sample application in each of these frameworks, in order to be able to compare the similarities between them, and note the subtle differences. Then, in our last chapter, we started exploring test-driven development, and discussed the use of Jasmine as a test framework. We also explored using various test runners, including Testem and Karma, and finally explored Protractor for running integration, or end-to-end, tests.

In this chapter, we will essentially be combining our work from the previous two chapters, and will be discussing how to unit and integration test each of our TypeScript compatible...