39 lines
1.4 KiB
Markdown
39 lines
1.4 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) > [$$eval](./puppeteer.frame.__eval.md)
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## Frame.$$eval() method
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<b>Signature:</b>
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```typescript
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$$eval<ReturnType>(selector: string, pageFunction: (elements: Element[], ...args: unknown[]) => ReturnType | Promise<ReturnType>, ...args: SerializableOrJSHandle[]): Promise<WrapElementHandle<ReturnType>>;
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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 | string | the selector to query for |
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| pageFunction | (elements: Element\[\], ...args: unknown\[\]) => ReturnType \| Promise<ReturnType> | the function to be evaluated in the frame's context |
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| args | [SerializableOrJSHandle](./puppeteer.serializableorjshandle.md)<!-- -->\[\] | additional arguments to pass to <code>pageFuncton</code> |
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<b>Returns:</b>
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Promise<[WrapElementHandle](./puppeteer.wrapelementhandle.md)<!-- --><ReturnType>>
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## Remarks
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This method runs `Array.from(document.querySelectorAll(selector))` within the frame and passes it as the first argument to `pageFunction`<!-- -->.
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If `pageFunction` returns a Promise, then `frame.$$eval` would wait for the promise to resolve and return its value.
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## Example
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```js
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const divsCounts = await frame.$$eval('div', divs => divs.length);
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```
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