Is there a way to convert a plain array into an array of wrapped items in JavaScript?
declare type MyGenericArray = [number, string, boolean]
declare type WrappedGeneraicArray = Wrap<MyGenericArray>
// WrappedGeneraicArray = [Wrapped<number>, Wrapped<string>, Wrapped<boolean>]
type Wrap = ??
I have attempted using the keyof operator but it seems to only work with objects and not arrays.
A simple solution is to create a mapped type that extends an array:
// illustration
type Enclosed<T> = { enclosed: T };
type Enclose<T extends Array<unknown>> = {
[K in keyof T]: Enclosed<T[K]>
}
type MyCustomArray = [string, boolean, number];
type EnclosedCustomArray = Enclose<MyCustomArray>;
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