--- sidebar_label: JSCoverage.start --- # JSCoverage.start() method #### Signature: ```typescript class JSCoverage { start(options?: { resetOnNavigation?: boolean; reportAnonymousScripts?: boolean; includeRawScriptCoverage?: boolean; useBlockCoverage?: boolean; }): Promise; } ``` ## Parameters | Parameter | Type | Description | | --------- | ---------------------------------------------------------------------------------------------------------------------------------- | ----------------- | | options | { resetOnNavigation?: boolean; reportAnonymousScripts?: boolean; includeRawScriptCoverage?: boolean; useBlockCoverage?: boolean; } | (Optional) | **Returns:** Promise<void>