mapKeys

mapKeys(f): <A>(data) => Readonly<Record<string, A>>

Defined in: Data/Rec.ts:269

Transforms each key while preserving values. If two keys map to the same new key, the last one wins.

Parameters

f

(key) => string

Returns

<A>(data) => Readonly<Record<string, A>>

Example

pipe({ firstName: "Alice", lastName: "Smith" }, Rec.mapKeys(k => k.toUpperCase()));
// { FIRSTNAME: "Alice", LASTNAME: "Smith" }