TypeScript of course. The compiler often times catches mistakes in variable names, API methods, whatever. So it saves time by not having to run the whole application all the time. Also the input help is much better, when the editor knows sth is a string or a number, for example.

[–] [email protected] 7 points 1 year ago (1 children)

Oh yeah. Or when it's a union of multiple strings or an enum and you get that sweet popup of all your options. So good 🥹

[–] [email protected] 5 points 1 year ago

And being able to use more complex object types like discriminated unions without having to constantly look up what's in them!