[Home](./index.md) > [puppeteer](./puppeteer.md) > [FrameManager](./puppeteer.framemanager.md) > [executionContextById](./puppeteer.framemanager.executioncontextbyid.md) ## FrameManager.executionContextById() method Signature: ```typescript executionContextById(contextId: number): ExecutionContext; ``` ## Parameters | Parameter | Type | Description | | --- | --- | --- | | contextId | number | | Returns: [ExecutionContext](./puppeteer.executioncontext.md)