50 lines
1.5 KiB
Markdown
50 lines
1.5 KiB
Markdown
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<!-- Do not edit this file. It is automatically generated by API Documenter. -->
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[Home](./index.md) > [puppeteer](./puppeteer.md) > [ElementHandle](./puppeteer.elementhandle.md) > [$$eval](./puppeteer.elementhandle.__eval.md)
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## ElementHandle.$$eval() method
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This method runs `document.querySelectorAll` within the element and passes it as the first argument to `pageFunction`. If there's no element matching `selector`, the method throws an error.
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If `pageFunction` returns a Promise, then `frame.$$eval` would wait for the promise to resolve and return its value.
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<b>Signature:</b>
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```typescript
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$$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 | |
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| pageFunction | (elements: Element\[\], ...args: unknown\[\]) => ReturnType \| Promise<ReturnType> | |
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| args | [SerializableOrJSHandle](./puppeteer.serializableorjshandle.md)\[\] | |
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<b>Returns:</b>
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Promise<[WrapElementHandle](./puppeteer.wrapelementhandle.md)<ReturnType>>
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## Example 1
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```html
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<div class="feed">
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<div class="tweet">Hello!</div>
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<div class="tweet">Hi!</div>
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</div>
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```
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## Example 2
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```js
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const feedHandle = await page.$('.feed');
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expect(await feedHandle.$$eval('.tweet', nodes => nodes.map(n => n.innerText)))
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.toEqual(['Hello!', 'Hi!']);
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```
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