Usage

last([1, 2, 3, 4]);
// 4

last([], 0);
// 0

Installation

CLI

npx atmx add helper last

Manually

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

/**
* Get the last item in an array or a default value.
*
* @example
* last([1, 2, 3, 4])
* // 4
*
* last([], 0)
* // 0
*/
export function last<T>(array: readonly T[]): T | undefined;

export function last<T, U>(array: readonly T[], defaultValue: U): T | U;

export function last(array: readonly unknown[], defaultValue?: unknown) {
return array?.length > 0 ? array[array.length - 1] : defaultValue;
}