Run typescript code directly using TS node

test ts Code time For convenience no need tsc To compile Direct use ts-node To joint commissioning ts Code

install typescript 

npm install -g typescript

//$ tsc -v
//Version 3.2.2

install ts-node  npm Official address https://www.npmjs.com/package/ts-node

npm install -g ts-node

demo.ts file

const test1:number =1;
console.log(test1);

The input terminal

ts-node demo.ts

// Be careful ts File path   such as ts-node D:/project1/testTs.ts
// The terminal prints out  1