Create a tesconfig.json
{
"compilerOptions": {
"target": "es2016",
"module": "commonjs",
"strict": true,
"esModuleInterop": true,
"skipLibCheck": true,
"forceConsistentCasingInFileNames": true,
"types": ["node"]
}
Run as
ts-node myfile.ts
https://codebeautify.org/typescript-formatter-online