题解 | #数组排序#
数组排序
https://www.nowcoder.com/practice/18ea36ef9b0c470e9db7681eced6e8df
let resDOM = (arr) => { let str = '' arr.forEach(e => str += `<li>${e.name}</li>`) ul.innerHTML = str } upbtn.onclick = () => { cups.sort((a,b) => a.sales - b.sales) resDOM(cups) } downbtn.onclick = () => { cups.sort((a,b) => b.sales - a.sales) resDOM(cups) }