Theo's Typesafe Cult•3y ago

Generic return type of function in record

I have a function with a param of type Foo<T> = <T extends string | number | symbol> = Record<T, (context: Context) => unknown> I'd like to keep the return type of whatever the function is. How would I use generics to get this to work?

1 Reply

bentenOP•3y ago

got it, it was so easy in hindsight

type Routes<T> = {
    [P in keyof T]: (context: Context) => T[P];
}

type Routes<T> = {
    [P in keyof T]: (context: Context) => T[P];
}

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Generic return type of function in record