[Home](./index.md) > [puppeteer](./puppeteer.md) > [WebWorker](./puppeteer.webworker.md) > [(constructor)](./puppeteer.webworker._constructor_.md) ## WebWorker.(constructor) Constructs a new instance of the `WebWorker` class Signature: ```typescript constructor(client: CDPSession, url: string, consoleAPICalled: ConsoleAPICalledCallback, exceptionThrown: ExceptionThrownCallback); ``` ## Parameters | Parameter | Type | Description | | --- | --- | --- | | client | [CDPSession](./puppeteer.cdpsession.md) | | | url | string | | | consoleAPICalled | ConsoleAPICalledCallback | | | exceptionThrown | ExceptionThrownCallback | |