Usage

unzip([
  ["a", 1, true],
  ["b", 2, false],
]); // [['a', 'b'], [1, 2], [true, false]]

Installation

CLI

npx atmx add helper unzip

Manually

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

/**
* Creates an array of ungrouped elements, where each resulting array
* contains all elements at a specific index from the input arrays.
* The first array contains all first elements, the second array
* contains all second elements, and so on.
*
* @example
* unzip([['a', 1, true], ['b', 2, false]]) // [['a', 'b'], [1, 2], [true, false]]
*/
export function unzip<T>(arrays: readonly (readonly T[])[]): T[][] {
if (!arrays || !arrays.length) {
return [];
}
const out = new Array(
arrays.reduce((max, arr) => Math.max(max, arr.length), 0),
);
let index = 0;
const get = (array: T[]) => array[index];
for (; index < out.length; index++) {
out[index] = Array.from(arrays as { length: number }, get);
}
return out;
}