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Mastering TypeScript 3

By : Nathan Rozentals

3 (1)

Mastering TypeScript 3

3 (1)

By: Nathan Rozentals

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

Preface

Who this book is for

What this book covers

To get the most out of this book

Get in touch

Free Chapter

TypeScript Tools and Framework Options

TypeScript Tools and Framework Options

What is TypeScript?

TypeScript IDEs

Summary

Types, Variables, and Function Techniques

Types, Variables, and Function Techniques

Basic types

Functions

Advanced types

Summary

Interfaces, Classes, and Inheritance

Interfaces, Classes, and Inheritance

Interfaces

Classes

Inheritance

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

Summary

Decorators, Generics, and Asynchronous Features

Decorators, Generics, and Asynchronous Features

Decorators

Generics

Advanced types with generics

Asynchronous language features

Summary

Declaration Files and Strict Compiler Options

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

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

TypeScript Compatible Frameworks

What is MVC?

Using Backbone

Using Aurelia

Angular

Using React

Performance comparison

Summary

Test-Driven Development

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 Typescript Compatible Frameworks

Testing our sample application

Backbone testing

Aurelia testing

Angular testing

React testing

Summary

Modularization

Modularization

Module basics

AMD module loading

SystemJS module loading

Using Express with Node

AWS Lambda functions

Summary

Object-Oriented Programming

Object-Oriented Programming

Object-oriented principles

User interface design

The State pattern

The Mediator pattern

Modular code

Summary

Dependency Injection

Dependency Injection

Sending mail

Building a dependency injector

Decorator injection

Summary

Building Applications

Building Applications

Node and Angular integration

The UI experience

Authentication

External authentication

Summary

Let's Get Our Hands Dirty

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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Database-driven APIs

In order to provide the data that is needed for this application, we will store and retrieve data from a traditional database. We will provide a REST endpoint for each of our database tables that we will need. Node supports a wide variety of databases, including traditional relational databases such as Oracle or SQL Server, or object databases such as MongoDB or CouchDB. For the sake of this exercise, we will use Sqlite3 as a backing database.

Sqlite3 is a very small, fast, and self-contained database engine. It supports SQL language queries and standard table structures, and is contained within a single file on disk, or even as an in-memory temporary database. It can be installed on Windows, Linux, and macOS, and has a very small footprint. Sqlite3 also has some very simple, yet powerful, GUI tools to help with database design and data input, such as DB Browser...

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