Understanding Your First TypeScript Program
Learn how to create, compile, and run your first TypeScript program using Visual Studio Code, the TypeScript compiler, and Node.js.
In this beginner TypeScript tutorial, we explain the .ts file extension, write a simple program using string, number, and Boolean values, compile it into JavaScript, and run the generated JavaScript file. You will also see how TypeScript detects type errors during compilation.
Topics covered:
Create a TypeScript file
Write a basic TypeScript program
Understand type annotations
Compile TypeScript into JavaScript
Understand the generated .js file
Run JavaScript using Node.js
Identify a TypeScript type error
Understand the TypeScript compilation workflow
Commands used:
tsc hello.ts
node hello.js
Program workflow:
TypeScript file → TypeScript compiler → JavaScript file → Program output
This video is part of our beginner TypeScript course.
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