[Home](./index.md) > [@apextoaster/js-utils](./js-utils.md) > [isEmpty](./js-utils.isempty.md) ## isEmpty() function Signature: ```typescript export declare function isEmpty(val: Maybe | ReadonlyArray>): boolean; ``` ## Parameters | Parameter | Type | Description | | --- | --- | --- | | val | [Maybe](./js-utils.maybe.md)<Array<unknown> \| ReadonlyArray<unknown>> | | Returns: boolean