puppeteer/new-docs/puppeteer.webworker.evaluate.md

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[Home](./index.md) &gt; [puppeteer](./puppeteer.md) &gt; [WebWorker](./puppeteer.webworker.md) &gt; [evaluate](./puppeteer.webworker.evaluate.md)

## WebWorker.evaluate() method

<b>Signature:</b>

```typescript
evaluate<ReturnType extends any>(pageFunction: Function | string, ...args: any[]): Promise<ReturnType>;
```

## Parameters

|  Parameter | Type | Description |
|  --- | --- | --- |
|  pageFunction | Function \| string |  |
|  args | any\[\] |  |

<b>Returns:</b>

Promise&lt;ReturnType&gt;