Usage

zipToObject(["a", "b"], [1, 2]); // { a: 1, b: 2 }
zipToObject(["a", "b"], (k, i) => k + i); // { a: 'a0', b: 'b1' }
zipToObject(["a", "b"], 1); // { a: 1, b: 1 }

Installation

CLI

npx atmx add helper zip-to-object

Manually

Copy and paste the following method into @/utils/helpers/zipToObject.ts:

import { isArray } from "@/helpers/is-array.ts";
import { isFunction } from "@/helpers/is-function.ts";

/**
* Creates an object mapping the specified keys to their corresponding
* values.
*
* @example
* zipToObject(['a', 'b'], [1, 2]) // { a: 1, b: 2 }
* zipToObject(['a', 'b'], (k, i) => k + i) // { a: 'a0', b: 'b1' }
* zipToObject(['a', 'b'], 1) // { a: 1, b: 1 }
*/
export function zipToObject<K extends string | number | symbol, V>(
keys: K[],
values: V | ((key: K, idx: number) => V) | V[],
): Record<K, V> {
if (!keys || !keys.length) {
return {} as Record<K, V>;
}

const getValue = isFunction(values)
? values
: isArray(values)
  ? (_k: K, i: number) => values[i]
  : (_k: K, _i: number) => values;

return keys.reduce(
(acc, key, idx) => {
  acc[key] = getValue(key, idx);
  return acc;
},
{} as Record<K, V>,
);
}