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33 lines
1.5 KiB
Markdown
33 lines
1.5 KiB
Markdown
<!-- Do not edit this file. It is automatically generated by API Documenter. -->
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[Home](./index.md) > [puppeteer](./puppeteer.md) > [Frame](./puppeteer.frame.md) > [waitFor](./puppeteer.frame.waitfor.md)
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## Frame.waitFor() method
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<b>Signature:</b>
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```typescript
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waitFor(selectorOrFunctionOrTimeout: string | number | Function, options?: {}, ...args: SerializableOrJSHandle[]): Promise<JSHandle | null>;
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```
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## Parameters
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| Parameter | Type | Description |
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| --- | --- | --- |
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| selectorOrFunctionOrTimeout | string \| number \| Function | a selector, predicate or timeout to wait for. |
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| options | {} | optional waiting parameters. |
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| args | [SerializableOrJSHandle](./puppeteer.serializableorjshandle.md)<!-- -->\[\] | arguments to pass to <code>pageFunction</code>. |
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<b>Returns:</b>
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Promise<[JSHandle](./puppeteer.jshandle.md) \| null>
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## Remarks
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This method behaves differently depending on the first parameter. If it's a `string`<!-- -->, it will be treated as a `selector` or `xpath` (if the string starts with `//`<!-- -->). This method then is a shortcut for [Frame.waitForSelector()](./puppeteer.frame.waitforselector.md) or [Frame.waitForXPath()](./puppeteer.frame.waitforxpath.md)<!-- -->.
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If the first argument is a function this method is a shortcut for [Frame.waitForFunction()](./puppeteer.frame.waitforfunction.md)<!-- -->.
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If the first argument is a `number`<!-- -->, it's treated as a timeout in milliseconds and the method returns a promise which resolves after the timeout.
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