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

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[Home](./index.md) &gt; [puppeteer](./puppeteer.md) &gt; [JSHandle](./puppeteer.jshandle.md) &gt; [evaluate](./puppeteer.jshandle.evaluate.md)

## JSHandle.evaluate() method

This method passes this handle as the first argument to `pageFunction`<!-- -->. If `pageFunction` returns a Promise, then `handle.evaluate` would wait for the promise to resolve and return its value.

<b>Signature:</b>

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

## Parameters

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

<b>Returns:</b>

Promise&lt;ReturnType&gt;

## Example


```js
const tweetHandle = await page.$('.tweet .retweets');
expect(await tweetHandle.evaluate(node => node.innerText)).toBe('10');

```