lijianan
2 years ago
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GitHub
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1 changed files with
2 additions and
6 deletions
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components/back-top/index.tsx
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@ -63,9 +63,9 @@ const BackTop: React.FC<BackTopProps> = props => { |
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const handleScroll = throttleByAnimationFrame( |
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(e: React.UIEvent<HTMLElement> | { target: any }) => { |
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const { visibilityHeight } = props; |
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const { visibilityHeight = 400 } = props; |
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const scrollTop = getScroll(e.target, true); |
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setVisible(scrollTop > visibilityHeight!); |
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setVisible(scrollTop > visibilityHeight); |
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}, |
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); |
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@ -131,8 +131,4 @@ const BackTop: React.FC<BackTopProps> = props => { |
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); |
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}; |
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BackTop.defaultProps = { |
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visibilityHeight: 400, |
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}; |
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export default React.memo(BackTop); |
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