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13c7c7f611
* feat(mapKeys): add mapKeys * feat(map*): not clone object * chore. fix names on bench * feat. pass cloned object to iteratee * Fix interface * fix. fix test codes * fix. fix type error on test * Add docs * test: Check test * bench * rewrite * mapKeys * test: Do not mutate the original function --------- Co-authored-by: raon0211 <raon0211@toss.im>
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mapKeys
Creates a new object with the same values as the given object, but with keys generated by running each own enumerable property of the object through the getNewKey function.
Signature
function mapKeys<T extends Record<PropertyKey, unknown>, K1 extends keyof T, K2 extends PropertyKey>(
object: T,
getNewKey: (value: T[K1], key: K1, object: T) => N
): Record<K2, T[K]>;
Parameters
obj(T extends object): The object to iterate over.getNewKey: ((value: T[K1], key: K1, object: T) => N): The function invoked per own enumerable property.
Returns
(Record<K2, T[K]>): The new mapped object.
Examples
const obj = { a: 1, b: 2 };
const result = mapKeys(obj, (value, key) => key + value);
console.log(result); // { a1: 1, b2: 2 }