TypeError [ERR_UNKNOWN_FILE_EXTENSION]: Unknown file extension ".ts" for /app/src/App.ts typescript
The error TypeError [ERR_UNKNOWN_FILE_EXTENSION]: Unknown file extension ".ts" occurs when you try to run a TypeScript file (.ts) directly using Node.js, which does not understand TypeScript syntax by default. Node.js runs JavaScript, not TypeScript
npm install ts-node typescript --save-dev
npx ts-node /app/src/App.ts
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