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---
sidebar_label: Frame.$$eval
---
# Frame.$$eval() method
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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.
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#### Signature:
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```typescript
class Frame {
$$eval<
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Selector extends string,
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Params extends unknown[],
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Func extends EvaluateFuncWith<
Array< NodeFor < Selector > >,
Params
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> = EvaluateFuncWith<Array<NodeFor<Selector>>, Params>,
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>(
selector: Selector,
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pageFunction: string | Func,
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...args: Params
): Promise< Awaited < ReturnType < Func > >>;
}
```
## Parameters
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< table > < thead > < tr > < th >
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Parameter
< / th > < th >
Type
< / th > < th >
Description
< / th > < / tr > < / thead >
< tbody > < tr > < td >
selector
< / td > < td >
Selector
< / td > < td >
The selector to query for.
< / td > < / tr >
< tr > < td >
pageFunction
< / td > < td >
string \| Func
< / td > < td >
The function to be evaluated in the frame's context. An array of elements matching the given selector will be passed to the function as its first argument.
< / td > < / tr >
< tr > < td >
args
< / td > < td >
Params
< / td > < td >
Additional arguments to pass to `pageFunction` .
< / td > < / tr >
< / tbody > < / table >
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**Returns:**
Promise< Awaited< ReturnType< Func> > >
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A promise to the result of the function.
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## Example
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```ts
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const divsCounts = await frame.$$eval('div', divs => divs.length);
```