TypeScript - how to install tsc under Windows (TypeScript compiler)

In this article, we would like to show how to install TypeScript compiler under Windows.

Quick solution:

npm install -g typescript

Note: typescript package contains tsc command.

Detailed desription

1. Ensure that Node.js and npm command are installed
   (installation and running instruction is here).
2. Open some terminal as administrator, e.g. Bash
   (an installation instruction is here).
3. Install TypeScript compiler using:

   npm install -g typescript

   Where: -g flag means global installation.
   Example output:

   john@DESKTOP-PC MINGW64 ~
   $ npm -g install typescript
   C:\Users\john\AppData\Roaming\npm\tsc -> C:\Users\john\AppData\Roaming\npm\node_modules\typescript\bin\tsc
   C:\Users\john\AppData\Roaming\npm\tsserver -> C:\Users\john\AppData\Roaming\npm\node_modules\typescript\bin\tsserver
   + typescript@4.0.3
   updated 1 package in 17.571s

*.ts compilation instruction

1. Create Script.ts file:

   for (let i = 0; i < 5; ++i) {
       console.log('Hello world!');
   }

2. Run tsc command:

   tsc Script.ts

   Note: Script.js file should be created from Script.ts file.

3. Run compiled program:

   node Script.js

   Output:

   Hello world!
   Hello world!
   Hello world!
   Hello world!
   Hello world!

Warning:

tsconfig.json file located in sources directory may change compilation configuration. To solve the problem you can edit the configuration or remove the file.

References

1.  TypeScript Installation - Microsoft Docs