mapKeys

object

Creates an object with the same values as object and keys generated by running each own enumerable string keyed property of object thru iteratee.

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Installation

Import

import { mapKeys } from '@tulx/utils';

Source Code

Implementation

/**
 * Creates an object with the same values as object and keys generated by running each own enumerable string keyed property of object thru iteratee.
 *
 * @param object - The object to iterate over.
 * @param iteratee - The function invoked per iteration.
 * @returns Returns the new mapped object.
 *
 * @example
 * ```ts
 * mapKeys({ 'a': 1, 'b': 2 }, (value, key) => key + value); // { 'a1': 1, 'b2': 2 }
 * ```
 */
export function mapKeys<T>(
  object: Record<string, T>,
  iteratee: (value: T, key: string) => string
): Record<string, T> {
  const result: Record<string, T> = {};
  for (const key in object) {
    if (Object.prototype.hasOwnProperty.call(object, key)) {
      const newKey = iteratee(object[key], key);
      result[newKey] = object[key];
    }
  }
  return result;
}

Example

import { mapKeys } from '@tulx/utils';

mapKeys({ 'a': 1, 'b': 2 }, (value, key) => key + value); // { 'a1': 1, 'b2': 2 }

Related Functions

assign

Assigns own enumerable string keyed properties of source objects to the destination object.

assignIn

This method is like assign except that it iterates over own and inherited source properties.

assignInWith

This method is like assignIn except that it accepts customizer which is invoked to produce the assigned values.

assignWith

This method is like assign except that it accepts customizer which is invoked to produce the assigned values.

Creates an array of values corresponding to paths of object.

create

Creates an object that inherits from the prototype object.