[Home](./index.md) > [@apextoaster/js-utils](./js-utils.md) > [constructorName](./js-utils.constructorname.md) ## constructorName() function Get the constructor name from an instance. Signature: ```typescript export declare function constructorName(val: object): string; ``` ## Parameters | Parameter | Type | Description | | --- | --- | --- | | val | object | | Returns: `string`