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Version: 22.12.0

ElementHandle.$$eval() method

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

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

Signature:

class ElementHandle {
$$eval<
Selector extends string,
Params extends unknown[],
Func extends EvaluateFuncWith<
Array<NodeFor<Selector>>,
Params
> = EvaluateFuncWith<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 element's page'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 pageFunction.

Returns:

Promise<Awaited<ReturnType<Func>>>

A promise to the result of the function.

Example

HTML:

<div class="feed">
<div class="tweet">Hello!</div>
<div class="tweet">Hi!</div>
</div>

JavaScript:

const feedHandle = await page.$('.feed');
expect(
await feedHandle.$$eval('.tweet', nodes => nodes.map(n => n.innerText))
).toEqual(['Hello!', 'Hi!']);