Typescript is sufficiently close to JavaScript that it doesn't really feel like it's treating JS as some invisibly underlying assembly-like layer. In practice,

Typescript is sufficiently close to JavaScript that it doesn't really feel like it's treating JS as some invisibly underlying assembly-like layer. In practice, you can use as much or as little typing as you want, and the compiler will occasionally tell you "I think you're doing something dangerous here", but even then you're only one <any> away from ignoring its generally good advice (or more sanely, you would annotate the ambiguous bits a bit better so typescript understands you really meant to do that.) But otherwise, all the usual js hacks still very much apply. Anyway, that's why typescript is my cup of tea|coffee.