Not completely. Types are documentation. When going from JS -> TS you suddenly have the ability to create types that allow you to easily discover what is in an object. You can now confidently say foo.bar.replace(...) and know it'll work at runtime.
Otherwise you hope that someone has written in a doc somewhere that bar is a string. And judging by npm docs I've seen - that is very unlikely. So you debug at runtime, head over to the github repo, or do an console.log(typeof(... hmm!
Otherwise you hope that someone has written in a doc somewhere that bar is a string. And judging by npm docs I've seen - that is very unlikely. So you debug at runtime, head over to the github repo, or do an console.log(typeof(... hmm!