--- sidebar_label: BrowserContextEvent --- # BrowserContextEvent enum #### Signature: ```typescript export declare const enum BrowserContextEvent ``` ## Enumeration Members <table><thead><tr><th> Member </th><th> Value </th><th> Description </th></tr></thead> <tbody><tr><td> TargetChanged </td><td> `"targetchanged"` </td><td> Emitted when the url of a target inside the browser context changes. Contains a [Target](./puppeteer.target.md) instance. </td></tr> <tr><td> TargetCreated </td><td> `"targetcreated"` </td><td> Emitted when a target is created within the browser context, for example when a new page is opened by [window.open](https://developer.mozilla.org/en-US/docs/Web/API/Window/open) or by [browserContext.newPage](./puppeteer.browsercontext.newpage.md) Contains a [Target](./puppeteer.target.md) instance. </td></tr> <tr><td> TargetDestroyed </td><td> `"targetdestroyed"` </td><td> Emitted when a target is destroyed within the browser context, for example when a page is closed. Contains a [Target](./puppeteer.target.md) instance. </td></tr> </tbody></table>