This is fork from microsoft TS Babel starter
Its a pre-configured Typescript with Jest project, which can be used for writing code (may be try out modules) in typescript as well as write tests.
I wanted to have starter code with pre-configured typescript and Jest.
I dont have much experience but this seems to be a good starting point and will improve upon suggestions.
npm run type-check
And to run in --watch mode:
npm run type-check:watch
npm run start
npm start src/sum.ts
npx jest