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20 lines
646 B
Markdown
20 lines
646 B
Markdown
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## API
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> The distance to the bottom is set to `50px` by default, which is overridable.
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>
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> If you decide to use custom styles, please note the size limit: no more than `40px * 40px`.
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| Property | Description | Type | Default |
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| -------- | ----------- | ---- | ------- |
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| target | specifies the scrollable area dom node | () => HTMLElement | () => window |
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| visibilityHeight | the `BackTop` button will not show until the scroll height reaches this value | number | 400 |
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### events
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| Events Name | Description | Arguments |
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| --- | --- | --- |
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| click | a callback function, which can be executed when you click the button | Function |
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