How to setup express in ts

1. create main.js

2. npm init -y

3. npm i express

4. npm i typescript nodemon @types/express @types/node -D

5. tsc --init

6. change main.js to main.ts

7. uncomment "outDir": "./dist" and "rootDir": "./src" in the tsconfig.json

8. create src dir and move main.ts into src. src/main.ts

9. npm i rimraf concurrently

10. add this commands in package.json

       "scripts": {
    
    	    "prebuild": "rimraf ./dist",
    	    
    	    "build": "npx tsc",
    	    
    	    "start": "node ./dist/main.js",
    	    
    	    "preserve": "npm run build",
    	    
    	    "serve": "concurrently \"npx tsc -w\"  \"nodemon ./dist/main.js\"",
    	    
    	    "test": "echo \"Error: no test specified\" && exit 1"
    
    },
    

11. npm run serve