--- sidebar_label: ElementHandle.waitForSelector --- # ElementHandle.waitForSelector() method Wait for the `selector` to appear within the element. If at the moment of calling the method the `selector` already exists, the method will return immediately. If the `selector` doesn't appear after the `timeout` milliseconds of waiting, the function will throw. This method does not work across navigations or if the element is detached from DOM. **Signature:** ```typescript class ElementHandle { waitForSelector( selector: Selector, options?: Exclude ): Promise> | null>; } ``` ## Parameters | Parameter | Type | Description | | --------- | -------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------ | | selector | Selector | A [selector](https://developer.mozilla.org/en-US/docs/Web/CSS/CSS_Selectors) of an element to wait for | | options | Exclude<[WaitForSelectorOptions](./puppeteer.waitforselectoroptions.md), 'root'> | (Optional) Optional waiting parameters | **Returns:** Promise<[ElementHandle](./puppeteer.elementhandle.md)<[NodeFor](./puppeteer.nodefor.md)<Selector>> \| null> Promise which resolves when element specified by selector string is added to DOM. Resolves to `null` if waiting for hidden: `true` and selector is not found in DOM. ## Remarks The optional parameters in `options` are: - `visible`: wait for the selected element to be present in DOM and to be visible, i.e. to not have `display: none` or `visibility: hidden` CSS properties. Defaults to `false`. - `hidden`: wait for the selected element to not be found in the DOM or to be hidden, i.e. have `display: none` or `visibility: hidden` CSS properties. Defaults to `false`. - `timeout`: maximum time to wait in milliseconds. Defaults to `30000` (30 seconds). Pass `0` to disable timeout. The default value can be changed by using the [Page.setDefaultTimeout()](./puppeteer.page.setdefaulttimeout.md) method.