44 lines
2.4 KiB
Markdown
44 lines
2.4 KiB
Markdown
---
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sidebar_label: ElementHandle.waitForSelector
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---
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# ElementHandle.waitForSelector() method
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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.
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This method does not work across navigations or if the element is detached from DOM.
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**Signature:**
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```typescript
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class ElementHandle {
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waitForSelector<Selector extends string>(
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selector: Selector,
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options?: Exclude<WaitForSelectorOptions, 'root'>
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): Promise<ElementHandle<NodeFor<Selector>> | null>;
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}
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```
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## Parameters
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| Parameter | Type | Description |
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| --------- | -------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------ |
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| selector | Selector | A [selector](https://developer.mozilla.org/en-US/docs/Web/CSS/CSS_Selectors) of an element to wait for |
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| options | Exclude<[WaitForSelectorOptions](./puppeteer.waitforselectoroptions.md), 'root'> | <i>(Optional)</i> Optional waiting parameters |
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**Returns:**
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Promise<[ElementHandle](./puppeteer.elementhandle.md)<[NodeFor](./puppeteer.nodefor.md)<Selector>> \| null>
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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.
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## Remarks
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The optional parameters in `options` are:
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- `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`.
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- `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`.
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- `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.
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