Autocomplete is a big productivity boost too: VS Code will suggest methods on the object, then tell you exactly what arguments it takes and what types they all

Autocomplete is a big productivity boost too: VS Code will suggest methods on the object, then tell you exactly what arguments it takes and what types they all are. Of course maybe you can have another system which reads in the code you have and autocompletes for you too.. after all, the type info is all there, it's just in a different place. Compared to everything in the function definition: function foo(a: string, b: object, c: XMLHttpRequest): string