题解 | #数组排序#
数组排序
https://www.nowcoder.com/practice/18ea36ef9b0c470e9db7681eced6e8df?tpId=271&tqId=39548&rp=1&ru=/exam/oj&qru=/exam/oj&sourceUrl=%2Fexam%2Foj%3Fpage%3D1%26tab%3DJS%25E7%25AF%2587%26topicId%3D271&difficulty=undefined&judgeStatus=undefined&tags=&title=
<body>
<button class='up'>销量升序</button>
<button class='down'>销量降序</button>
<ul></ul>
<script>
var cups = [
{ type: 1, price: 100, color: 'black', sales: 3000, name: '牛客logo马克杯' },
{ type: 2, price: 40, color: 'blue', sales: 1000, name: '无盖星空杯' },
{ type: 4, price: 60, color: 'green', sales: 200, name: '老式茶杯' },
{ type: 3, price: 50, color: 'green', sales: 600, name: '欧式印花杯' }
]
var ul = document.querySelector('ul');
var upbtn = document.querySelector('.up');
var downbtn = document.querySelector('.down');
// 补全代码
upbtn.onclick=function() {
cups.sort((a,b) => a.sales-b.sales)
// console.log(cups)
const str= cups.map((item,index)=>{
return `
<li> ${item.name} </li>
`
})
// console.log(str.join(''))
ul.innerHTML=str.join('')
}
downbtn.onclick =function(){
cups.sort((a, b) => b.sales - a.sales)
// console.log(cups)
const str = cups.map((item, index) => {
return `
<li> ${item.name} </li>
`
})
ul.innerHTML = str.join('')
}
</script>
</body>
查看13道真题和解析
蔚来一面51人在聊
投递拼多多等公司10个岗位