[Home](./index.md) > [@firebase/performance](./performance.md) > [PerformanceTrace](./performance.performancetrace.md) > [removeAttribute](./performance.performancetrace.removeattribute.md) ## PerformanceTrace.removeAttribute() method Removes the specified custom attribute from a trace instance. Signature: ```typescript removeAttribute(attr: string): void; ``` ## Parameters | Parameter | Type | Description | | --- | --- | --- | | attr | string | Name of the custom attribute. | Returns: void