mapKeys

Returns a new object by transforming each key of the given object according to the result of the provided iteratee function.

Code

🔗 View source code

Benchmark

• hz: operations per second
• mean: average response time (ms)

Name	hz	mean	Performance
modern-kit/mapKeys	3,983,407.38	0.0003	fastest
lodash/mapKeys	3,060,203.94	0.0003	slowest

• modern-kit/mapKeys
  • 1.30x faster than lodash/mapKeys

Interface

typescript

function mapKeys<T extends Record<PropertyKey, any>, K extends PropertyKey>(
  obj: T,
  iteratee: (iterateData: { key: keyof T; value: T[keyof T]; obj: T }) => K
): Record<K, T[keyof T]>;

Usage

typescript

import { mapKeys } from '@modern-kit/utils';

const obj = { a: 1, b: 2 };

const newObj = mapKeys(obj, ({ key, value }) => key + value);
// { a1: 1, b2: 2 }