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13 lines
416 B
13 lines
416 B
import { useState } from 'react'
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export function useWindowScroll () {
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const [y, sety] = useState(0)
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// 在滚动行为发生的时候，不断获取滚动值，然后交给 y
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window.addEventListener('scroll', () => {
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const h = document.documentElement.scrollTop // documentElement 属性以一个元素对象返回一个文档的文档元素。
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sety(h)
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})
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return [y]
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}
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