题解 | #数组过滤#
数组过滤
https://www.nowcoder.com/practice/46d607f9bf64458daa8798339a7336d0
<script> var cups = [ { type: 1, price: 100, color: 'black', sales: 60, name: '牛客logo马克杯' }, { type: 2, price: 40, color: 'blue', sales: 100, 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 select = document.querySelector('select'); var ul = document.querySelector('ul'); // 补全代码 select.onchange=function(){ ul.innerHTML='' switch(parseInt(this.value)){ case 1: var newArr=cups.filter(item=>item.sales<100) break case 2: var newArr=cups.filter(item=>item.sales>=100&&item.sales<=500) break case 3: var newArr=cups.filter(item=>item.sales>500) break } arr2string(newArr) } function arr2string(arr){ var str='' arr.forEach(item=>{ str+=`<li>${item.name}</li>` }) ul.innerHTML=str } </script>
看了题解发现是sales不是price