Browse Library
Sign In Start Free Trial
Close icon Search icon
Account
Browse Library Advanced Search Sign In Start Free Trial

Add to playlist

Create a Playlist

Modal Close icon
You need to login to use this feature.
  • Book Overview & Buying Learning TypeScript 2.x
  • Table Of Contents Toc
  • Feedback & Rating feedback
Learning TypeScript 2.x

Learning TypeScript 2.x

By : Jansen
2 (1)
Buy this Book
close
close
Learning TypeScript 2.x

Learning TypeScript 2.x

2 (1)
By: Jansen
Buy this Book

Overview of this book

TypeScript is an open source and cross-platform statically typed superset of JavaScript that compiles to plain JavaScript and runs in any browser or host. This book is a step-by-step guide that will take you through the use and benefits of TypeScript with the help of practical examples. You will start off by understanding the basics as well as the new features of TypeScript 2.x. Then, you will learn how to work with functions and asynchronous programming APIs. You will continue by learning how to resolve runtime issues and how to implement TypeScript applications using the Object-oriented programming (OOP) and functional programming (FP) paradigms. Later, you will automate your development workflow with the help of tools such as Webpack. Towards the end of this book, you will delve into some real-world scenarios by implementing some full-stack TypeScript applications with Node.js, React and Angular as well as how to optimize and test them. Finally, you will be introduced to the internal APIs of the TypeScript compiler, and you will learn how to create custom code analysis tools.
Table of Contents (17 chapters)
close
close
close
Preface
Icon
Preface
Icon
Who this book is for
Icon
What this book covers
Icon
To get the most out of this book
Icon
Get in touch
Free Chapter
1
Introducing TypeScript
Icon
Introducing TypeScript
Icon
The TypeScript architecture
Icon
TypeScript language features
Icon
Putting everything together
Icon
Summary
2
Working with Types
Icon
Working with Types
Icon
The TypeScript type system's characteristics
Icon
Core features of the TypeScript type system
Icon
Literal types
Icon
Advanced features of the TypeScript type system
Icon
Summary
3
Working with Functions
Icon
Working with Functions
Icon
Working with functions in TypeScript
Icon
Asynchronous programming in TypeScript
Icon
Summary
4
Object-Oriented Programming with TypeScript
Icon
Object-Oriented Programming with TypeScript
Icon
Classes
Icon
Abstract classes
Icon
Interfaces
Icon
SOLID principles, encapsulation, and polymorphism
Icon
Summary
5
Working with Dependencies
Icon
Working with Dependencies
Icon
Third-party dependencies
Icon
Internal modules (module and namespace)
Icon
External modules
Icon
Managing dependencies in OOP
Icon
Summary
6
Understanding the Runtime
chevron up
Icon
Understanding the Runtime
Icon
The execution environment
Icon
Understanding the event loop
Icon
The this operator
Icon
Prototypes
Icon
Closures
Icon
Summary
7
Functional Programming with TypeScript
Icon
Functional Programming with TypeScript
Icon
FP concepts
Icon
FP techniques
Icon
Category theory
Icon
Real-world FP
Icon
Summary
8
Working with Decorators
Icon
Working with Decorators
Icon
Prerequisites
Icon
Annotations versus decorators
Icon
Summary
9
Automating Your Development Workflow
Icon
Automating Your Development Workflow
Icon
A modern development workflow
Icon
Prerequisites
Icon
Source control tools
Icon
Package management tools
Icon
The TypeScript compiler
Icon
Linting tools
Icon
Working with npm scripts
Icon
Gulp
Icon
Webpack
Icon
Webpack development server
Icon
Unit testing and test coverage
Icon
Visual Studio Code
Icon
ts-node
Icon
Continuous integration (CI) tools
Icon
Scaffolding tools
Icon
Why does the command line win?
Icon
Summary
10
Node.js Development with TypeScript
Icon
Node.js Development with TypeScript
Icon
Understanding Node.js
Icon
The Node.js ecosystem
Icon
Setting up Node.js
Icon
Node.js development
Icon
Summary
11
Frontend Development with React and TypeScript
Icon
Frontend Development with React and TypeScript
Icon
Working with React
Icon
Working with MobX
Icon
Development tools
Icon
Summary
12
Frontend Development with Angular and TypeScript
Icon
Frontend Development with Angular and TypeScript
Icon
Working with Angular
Icon
About the sample application
Icon
Serving an Angular application with Node.js
Icon
Bootstrapping an Angular application
Icon
Working with NgModules
Icon
Working with Angular components
Icon
Summary
13
Application Performance
Icon
Application Performance
Icon
Prerequisites
Icon
Performance and resources
Icon
Common performance metrics
Icon
Performance analysis
Icon
Performance automation
Icon
Exception handling
Icon
Summary
14
Application Testing
Icon
Application Testing
Icon
Testing terminology
Icon
Prerequisites
Icon
Testing methodologies
Icon
Tests plans and test types
Icon
The example application
Icon
Unit tests and integration tests with Mocha
Icon
End-to-end tests with Nightwatch.js
Icon
Summary
15
Working with the TypeScript Compiler and the Language Services
Icon
Working with the TypeScript Compiler and the Language Services
Icon
The TypeScript compiler's internal architecture
Icon
Understanding the abstract syntax tree (AST)
Icon
Implementing a yUML compiler
Icon
VS Code extensions
Icon
Summary
16
Other Books You May Enjoy
Icon
Other Books You May Enjoy
Icon
Leave a review - let other readers know what you think

Understanding the event loop

The TypeScript runtime (JavaScript) has a concurrency model based on an event loop. This model is quite different from the model in other languages, such as C or Java. Before we focus on the event loop itself, we must understand some runtime concepts.

What follows is a visual representation of some important runtime concepts: heap, stack, queue, and frame:

We will now look at the role of each of these concepts.

Frames

A frame is a sequential unit of work. In the preceding diagram, the frames are represented by the blocks inside the stack.

When a function is invoked in JavaScript, the runtime creates a frame in the stack. The frame holds that function's arguments and local variables. When...

Unlock full access

Continue reading for free

A Packt free trial gives you instant online access to our library of over 7000 practical eBooks and videos, constantly updated with the latest in tech
Start a 7-day FREE trial
End of Section 3
Next Section

Create a Note

Modal Close icon
You need to login to use this feature.
notes
bookmark search playlist font-size

Change the font size

margin-width

Change margin width

day-mode

Change background colour

Close icon Search
Country selected
Close icon Your notes and bookmarks

Delete Bookmark

Modal Close icon
Are you sure you want to delete it?
Cancel
Yes, Delete

Delete Note

Modal Close icon
Are you sure you want to delete it?
Cancel
Yes, Delete

Edit Note

Modal Close icon
Write a note (max 255 characters)
Cancel
Update Note

Confirmation

Modal Close icon
claim successful
Order Page Read Now

Buy this book with your credits?

Modal Close icon
Are you sure you want to buy this book with one of your credits?
Close
YES, BUY