--- sidebar_label: CommonEventEmitter --- # CommonEventEmitter interface #### Signature: ```typescript export interface CommonEventEmitter> ``` ## Methods | Method | Description | | --------------------------------------------------------------------------------- | ----------- | | [emit(type, event)](./puppeteer.commoneventemitter.emit.md) | | | [listenerCount(event)](./puppeteer.commoneventemitter.listenercount.md) | | | [off(type, handler)](./puppeteer.commoneventemitter.off.md) | | | [on(type, handler)](./puppeteer.commoneventemitter.on.md) | | | [once(type, handler)](./puppeteer.commoneventemitter.once.md) | | | [removeAllListeners(event)](./puppeteer.commoneventemitter.removealllisteners.md) | |