TypeScript

TypeScript

TypeScript is a superset for javascript, enabling us to write more elegant javascript code.

TypeScript in 5 minutes

Process

TypeScript –> Javascript –> Nodejs

1. use tsc to transpile TypeScript into JavaScript,
2. then run js by nodejs or browser.

Install

npm install -g typescript
tsc --version
Version 2.7.2

tsc --help

Project management

structure

See typescript101

➜  typescript101 git:(master) ✗ tree
.
├── HelloWorld.js
├── HelloWorld.js.map
├── HelloWorld.ts
├── README.md
├── greeter.html
├── greeter.js
├── greeter.js.map
├── greeter.ts
└── tsconfig.json

With Visual Studio Code

Warning: Visual Studio for Mac Community Edition does not support TypeScript natively. So if on Mac, use Visual Studio Code instead. or Use Visual Studio on Windows for better IDE support.

References:

1. Editing TypeScript in VSCode
2. Simplest TypeScript project using Visual Studio Code
   • File Scope
   • Explicit Project

tsconfig.json

This is the project definition file.