ts learning (1): environment installation and initial use

ts environment installation

partial installation

Download dependencies

npm install typescript

 Enter the following command to generate the file tsconfig.json

npx tsc --init

Compilation command

npx tsc index.ts

Global installation

npm install -g typescript

Compilation command

tsc index.ts

frame

Basically, vue-cli and vite will have ts optional configuration when creating a project, and the official ones are very easy to understand.

First Experience

Create test.ts

let a:number = 1

Use the compile command

npx tsc test.ts

Then a test.js file will be generated, even if it is successful