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TypeScript is overly complicated and for what? Compile-time "safety". It's better than plain JavaScript, though whatever library I pull as a dependency and peek inside the TypeScript<>JavaScript interface glue, I always find horrors beyond my comprehension.

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Compile error messages in a classical typed language: "Error: Object of type 'StructA' cannot be assigned to variable of type 'StructB'"

Compile error messages in TypeScript when you use a library like React: "Error: Cannot reconcile <5 pages of arcane gibberish> with <5 pages of different arcane gibberish>"

> the TypeScript<>JavaScript interface glue

… the typing file? That’s literally the only thing that’s different and if the original codebase was written in TS then is literally the types they defined.

Well either the typing glue or the library itself if it's written in TypeScript. My point was: the types are too damn complicated. Way too complicated for what they achieve. Almost always.

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