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  • Book Overview & Buying TypeScript Blueprints
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TypeScript Blueprints

TypeScript Blueprints

By : de Wolff
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TypeScript Blueprints

TypeScript Blueprints

By: de Wolff
Buy this Book

Overview of this book

TypeScript is the future of JavaScript. Having been designed for the development of large applications, it is now being widely incorporated in cutting-edge projects such as Angular 2. Adopting TypeScript results in more robust software - software that is more scalable and performant. It's scale and performance that lies at the heart of every project that features in this book. The lessons learned throughout this book will arm you with everything you need to build some truly amazing projects. You'll build a complete single page app with Angular 2, create a neat mobile app using NativeScript, and even build a Pac Man game with TypeScript. As if fun wasn't enough, you'll also find out how to migrate your legacy codebase from JavaScript to TypeScript. This book isn't just for developers who want to learn - it's for developers who want to develop. So dive in and get started on these TypeScript projects.
Table of Contents (11 chapters)
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Preface
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Preface
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What this book covers
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What you need for this book
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Who this book is for
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Conventions
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Reader feedback
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Customer support
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1
1. TypeScript 2.0 Fundamentals
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1. TypeScript 2.0 Fundamentals
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What is TypeScript?
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Quick example
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Learning modern JavaScript
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Type checking
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Summary
2
2. A Weather Forecast Widget with Angular 2
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2. A Weather Forecast Widget with Angular 2
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Using modules
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Setting up the project
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Creating the first component
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Adding conditions to the template
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Using the component in other components
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Showing a forecast
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Creating the forecast component
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The main component
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Summary
3
3. Note-Taking App with a Server
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3. Note-Taking App with a Server
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Setting up the project structure
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Getting started with NodeJS
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Understanding the structural type system
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Adding authentication
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Testing the API
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Adding CRUD operations
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Writing the client side
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Running the application
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Summary
4
4. Real-Time Chat
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4. Real-Time Chat
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Setting up the project
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Getting started with React
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Writing the server
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Connecting to the server
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Creating the chat room
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Comparing React and Angular
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Summary
5
5. Native QR Scanner App
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5. Native QR Scanner App
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Getting started with NativeScript
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Creating the project structure
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Creating a Hello World page
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Creating the main view
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Adding a details view
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Scanning QR codes
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Adding persistent storage
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Styling the app
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Comparing NativeScript to alternatives
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Summary
6
6. Advanced Programming in TypeScript
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6. Advanced Programming in TypeScript
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Using type guards
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More accurate type guards
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Checking null and undefined
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Creating tagged union types
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Comparing performance of algorithms
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Summary
7
7. Spreadsheet Applications with Functional Programming
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7. Spreadsheet Applications with Functional Programming
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Setting up the project
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Functional programming
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Using data types for expressions
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Writing unit tests
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Parsing an expression
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Defining the sheet
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Using the Flux architecture
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Creating actions
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Writing the view
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Advantages of Flux
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Summary
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8. Pac Man in HTML5
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8. Pac Man in HTML5
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Setting up the project
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Using the HTML5 canvas
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Designing the framework
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Drawing on the canvas
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Adding utility functions
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Creating the models
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Drawing the view
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Handling events
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Creating the time handler
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Running the game
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Adding a menu
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Summary
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9. Playing Tic-Tac-Toe against an AI
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9. Playing Tic-Tac-Toe against an AI
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Creating the project structure
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Adding utility functions
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Creating the models
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Implementing the AI using Minimax
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Creating the interface
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Testing the AI
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Summary
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10. Migrate JavaScript to TypeScript
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10. Migrate JavaScript to TypeScript
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Gradually migrating to TypeScript
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Adding TypeScript
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Migrating each file
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Refactoring the project
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Summary

Chapter 5. Native QR Scanner App

We have already used TypeScript to build web apps and a server. TypeScript can also be used to create mobile apps. In this chapter, we will build such an app. The app can scan QR codes. The app shows a list of all previous scans. If a QR code contains a URL, the app can open that URL in a web browser. Various frameworks exist for making mobile apps in TypeScript. We will use NativeScript, which provides a native user interface and runs on Android and iOS, as shown in the following:

Native QR Scanner App

We will create this app with the following steps:

  • Creating the project structure
  • Creating a Hello World page
  • Creating the main view
  • Adding a details view
  • Scanning QR codes
  • Adding persistent storage
  • Styling the app
  • Comparing NativeScript to alternatives
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CONTINUE READING
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Tech Concepts
36
Programming languages
73
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