Javascript
A wonderfully complex "simple" language. Saying it makes no sense is just about as easy as it is absurd.
I don't see Javascript as something lacking in any way, nor do I see it as something replaceable by Typescript or any other supersets or even languages. I think it's here to stay, and that's a good thing.
Regardless of the higher level tools(libraries, frameworks and so on) used in development, I think a developer who doesn't master the "art" of Javascript itself should never be called a Front-End developer or a Full-Stack developer.