There’s no running TS. Everyone executes JS. Also TS itself is going towards stripped types. There’s this proposal which might land on browsers some day: http

There’s no running TS. Everyone executes JS. Also TS itself is going towards stripped types. There’s this proposal which might land on browsers some day: https://tc39.es/proposal-type-annotations/ https://tc39.es/proposal-type-annotations/ And in preparation you can use this setting on your tsconfig: https://www.typescriptlang.org/tsconfig/#erasableSyntaxOnly https://www.typescriptlang.org/tsconfig/#erasableSyntaxOnly