Either is valid. If you got your first taste of typescript from angular and have a full stack background in c#/ Java class based style will make you feel right

Either is valid. If you got your first taste of typescript from angular and have a full stack background in c#/ Java class based style will make you feel right at home. React seems to oscillate between the 2 styles. My recent work in Svelte send to favor functions and types. IMO the biggest benefit of classes is the code organization it brings. Have you ever seen a “util” class or folder. That’s what tends to happen to a code base without strong cohesion. It becomes hard to find anything. With typescript/js you have modules as a pretty good substitute. What I love about typescript is that you can mix the two. Mostly classless module based with the occasional class (logger with a constructor to pass in the current module name for example) seems to be what I like most now. Use what makes sense.