---
sidebar_label: Frame.$$eval
---

# Frame.$$eval() method

Runs the given function on an array of elements matching the given selector in the frame.

If the given function returns a promise, then this method will wait till the promise resolves.

#### Signature:

```typescript
class Frame {
  $$eval<
    Selector extends string,
    Params extends unknown[],
    Func extends EvaluateFunc<
      [Array<NodeFor<Selector>>, ...Params]
    > = EvaluateFunc<[Array<NodeFor<Selector>>, ...Params]>
  >(
    selector: Selector,
    pageFunction: Func | string,
    ...args: Params
  ): Promise<Awaited<ReturnType<Func>>>;
}
```

## Parameters

| Parameter    | Type           | Description                                                                                                                                                 |
| ------------ | -------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------- |
| selector     | Selector       | The selector to query for.                                                                                                                                  |
| pageFunction | Func \| string | The function to be evaluated in the frame's context. An array of elements matching the given selector will be passed to the function as its first argument. |
| args         | Params         | Additional arguments to pass to <code>pageFunction</code>.                                                                                                  |

**Returns:**

Promise&lt;Awaited&lt;ReturnType&lt;Func&gt;&gt;&gt;

A promise to the result of the function.

## Example

```js
const divsCounts = await frame.$$eval('div', divs => divs.length);
```