Mouse.wheel() method

Dispatches a mousewheel event.

Signature

typescript

class Mouse {
  abstract wheel(options?: Readonly<MouseWheelOptions>): Promise<void>;
}

Parameters

Parameter

</th><th>

Type

</th><th>

Description

</th></tr></thead> <tbody><tr><td>

options

</td><td>

Readonly<MouseWheelOptions>

</td><td>

(Optional) Optional: MouseWheelOptions.

</td></tr> </tbody></table>

Returns:

Promise<void>

Example

An example of zooming into an element:

await page.goto(
  'https://mdn.mozillademos.org/en-US/docs/Web/API/Element/wheel_event$samples/Scaling_an_element_via_the_wheel?revision=1587366',
);

const elem = await page.$('div');
const boundingBox = await elem.boundingBox();
await page.mouse.move(
  boundingBox.x + boundingBox.width / 2,
  boundingBox.y + boundingBox.height / 2,
);

await page.mouse.wheel({deltaY: -100});