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BackTop
BackTop makes it easy to go back to the top of the page.
When to use
When the page content is very long.
When you need to go back to the top very frequently in order to view the contents.
When you need to go back to the top very frequently in order to view the contents.
Basic
The most basic usage.
Scroll down to see the bottom-right red button.
Custom style
You can customize the style of the button, just note the size limit: no more than 40px * 40px.
API
| Property | Description | Type | Default |
|---|---|---|---|
target | specifies the scrollable area dom node | () => HTMLElement | () => window |
visibilityHeight | the BackTop button will not show until the scroll height reaches this value | number | 400 |
onClick | a callback function, which can be executed when you click the button | Function | - |