[Home](./index.md) > [puppeteer](./puppeteer.md) > [CommonEventEmitter](./puppeteer.commoneventemitter.md) > [emit](./puppeteer.commoneventemitter.emit.md) ## CommonEventEmitter.emit() method Signature: ```typescript emit(event: EventType, eventData?: unknown): boolean; ``` ## Parameters | Parameter | Type | Description | | --- | --- | --- | | event | [EventType](./puppeteer.eventtype.md) | | | eventData | unknown | | Returns: boolean