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43 lines
1.0 KiB
Markdown
43 lines
1.0 KiB
Markdown
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<!-- Do not edit this file. It is automatically generated by API Documenter. -->
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[Home](./index.md) > [puppeteer](./puppeteer.md) > [Mouse](./puppeteer.mouse.md) > [wheel](./puppeteer.mouse.wheel.md)
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## Mouse.wheel() method
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Dispatches a `mousewheel` event.
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<b>Signature:</b>
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```typescript
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wheel(options?: MouseWheelOptions): Promise<void>;
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```
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## Parameters
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| Parameter | Type | Description |
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| --- | --- | --- |
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| options | [MouseWheelOptions](./puppeteer.mousewheeloptions.md) | Optional: <code>MouseWheelOptions</code>. |
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<b>Returns:</b>
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Promise<void>
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## Example
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An example of zooming into an element:
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```js
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await page.goto('https://mdn.mozillademos.org/en-US/docs/Web/API/Element/wheel_event$samples/Scaling_an_element_via_the_wheel?revision=1587366');
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const elem = await page.$('div');
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const boundingBox = await elem.boundingBox();
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await page.mouse.move(
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boundingBox.x + boundingBox.width / 2,
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boundingBox.y + boundingBox.height / 2
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);
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await page.mouse.wheel({ deltaY: -100 })
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```
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