Usage

sift([0, 1, undefined, null, 2, false, 3, ""]);
// => [1, 2, 3]

Installation

CLI

npx atmx add helper sift

Manually

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

type Falsy = null | undefined | false | "" | 0 | 0n;

/**
* Given a list returns a new list with only truthy values.
*
* @example
* sift([0, 1, undefined, null, 2, false, 3, ''])
* // => [1, 2, 3]
*/
export function sift<T>(array: readonly (T | Falsy)[]): T[] {
return (array?.filter((x) => !!x) as T[]) ?? [];
}