const scrollWrapperRef = ref(null) // 获取滚动容器的ref const handleScroll = () => { const scrollWrapper = scrollWrapperRef.value // 获取滚动容器 const { scrollTop, clientHeight, scrollHeight } = scrollWrapper // 获取滚动数据 // 判断是否滚动到底部 if (scrollTop + clientHeight >= scrollH...
判断滚动到底部:Math.ceil(scrollTop+clientHeight+1)>= scrollHeight这里+1和向上取整是考虑到scrollTop是浮点数 react demo 案例: AI检测代码解析 import { useEffect, useRef, useState, useCallback } from 'react'; import {Button,notification} from 'tdesign-react' const ScrollDemo=(props:any,ref:any)...
const containerRef= ref(null); const emit= defineEmits(['select']); const { x, y, showMenu }=useContextMenu(containerRef);//菜单的点击事件functionhandleClick(item) {//选中菜单后关闭菜单showMenu.value =false;//并返回选中的菜单emit('select', item); }functionhandleBeforeEnter(el) { el.s...
constgridContent=ref<any>(null); //根据触底数据判断获取最新数据 constgetMoreData=()=>{ constscrollHeight = gridContent.value.scrollHeight || 0; constclientHeight = gridContent.value.clientHeight || 0; constscrollTop = gridContent.value.scrollTop || 0; if(scrollHeight - clientHeight - scrollT...
当top < 当前视口高度 && bottom > 0 条件成立就能判断元素进入视口可见区域了,而获取视口高度可以通过 documentElement.clientHeight 和body.clientHeight。为什么这个条件成立就能说明? 你品,你细品。 具体代码就如下: app.directive('lazy-img', { beforeMount(el, binding) { el.$data_src = binding.value; }...
{ref,onMounted}from'vue';exportdefault{name:'FlyBox',setup(){constwrapper=ref(null)constwidth=ref(0)constheight=ref(0)onMounted(()=>{if(wrapper.value){console.log(wrapper.value)constdom=wrapper.value// 访问 DOM 元素width.value=dom.clientWidthheight.value=dom.clientHeight}});return{wrapper,...
ref(null); const items = ref(Array.from({ length: 50 }, (_, i) => `Item ${i + 1}`)); const handleScroll = (event) => { const scrollTop = event.target.scrollTop; const scrollHeight = event.target.scrollHeight; const clientHeight = event.target.clientHeight; if (scroll...
ref="wrapper" :tabindex="-1" class="el-image-viewer__wrapper" :style="{ zIndex }" > <!-- CLOSE --> <!-- ARROW --> <template v-if="!isSingle">
const parentElement = toRef(parentInstance.refs, 'parentElement'); // 获取父元素的高度 const parentHeight = () => { if (parentElement.value) { return parentElement.value.clientHeight; } else { return 0; } }; // 其他逻辑代码 return { parentHeight }; } }; ``` 通过以上步骤,我们就...
import { ref } from'vue'const bottom= ref(false) const scrolling= (e) =>{ const clientHeight=e.target.clientHeight const scrollHeight=e.target.scrollHeight const scrollTop=e.target.scrollTopif(scrollTop + clientHeight >=scrollHeight) { console.log('到底...