标签：each data abs bsp let 加载 trie 懒加载 set
const io = new IntersectionObserver(callback);
let imgs = document.querySelectorAll(‘[data-src]‘);
function callback(entries){
entries.forEach((item) => {
if(item.isIntersecting){
item.target.src = item.target.dataset.src
io.unobserve(item.target)
}
})
}
imgs.forEach((item)=>{
io.observe(item)
})
标签：each data abs bsp let 加载 trie 懒加载 set
原文地址：https://www.cnblogs.com/vicky24k/p/12093278.html
