[TypeScript] Installing TypeScript and Running the TypeScript Compiler (tsc)

This lesson shows you how to install TypeScript and run the TypeScript compiler against a .ts file from the command line.

install:

npm install -g typescript
 
tsc -v // version 

app.ts:

class Person{}

RUN:

tsc app.ts

You will see the js file with the same name.

If you want a different name, you can do :

tsc --out <output_filename> <input_filename>
 
tsc --out bundle.js app.ts

Watch files changes:

tsc -w --out bundle.js app.ts