题解 | #新数组#
1. 利用剩余参数 ...赋值给新数组 newArr
2.通过splice截取目标索引的数组项，且会直接改变被操作的数组
DOCTYPE html>
html>
head>
meta charset=utf-8>
head>
body>
script type="text/javascript">
let arr = ["你好", "世界", "hello", "world"]
const _delete = (array, index) => {
// 补全代码
let newArr = [...array]
newArr.splice(index,1)
return newArr
}
_delete(arr, 1)
script>
body>
html>
查看6道真题和解析