What does the const modifier on a type parameter change in these calls?
Name the type each ^? line points at, and say whether TypeScript reports any errors.
function routes<T extends readonly string[]>(paths: T): T { return paths;}function constRoutes<const T extends readonly string[]>(paths: T): T { return paths;}function mutableRoutes<const T extends string[]>(paths: T): T { return paths;} const a = routes(["/", "/about"]);// ^?const b = constRoutes(["/", "/about"]);// ^?const c = mutableRoutes(["/", "/about"]);// ^?const list = ["/", "/about"];const d = constRoutes(list);// ^?Work it out first: the compiler shows every error and type.
The answer
Work out every error TypeScript reports and every type it shows, line by line. Then check.
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