🟦 TypeScript in Node.js
Use TypeScript with Node.js to write typed, modern JavaScript server-side code that runs perfectly on Node’s runtime.
⚙️ Setup
- Install Node.js (v14+ recommended): nodejs.org
- Initialize project:
npm init -y
- Install TypeScript & Node types:
npm install typescript @types/node --save-dev
- Create
tsconfig.json with npx tsc --init
📝 Example: Hello World Server
Output will appear here...
💡 Tip: Use npx tsc to compile your TypeScript files to JavaScript, then run node dist/index.js (or wherever your compiled files are).
🔧 How to Run This Locally
- Write your TypeScript in
src/index.ts
- Compile with
npx tsc
- Run compiled JS with
node dist/index.js
- Use
ts-node for dev convenience (npm install -D ts-node) to run TS directly
🚀 Why Use TypeScript with Node.js?
- Static typing catches bugs before runtime
- Better editor autocompletion & intellisense
- Modern JS features with ES modules, async/await, etc.
- Large ecosystem with type definitions via DefinitelyTyped