javaScript 数组对象取出某一列

Posted 2022-06-30 知其黑、受其白

<script>
let arr = [ id:3,name:'张三',  id:4,name:'李四', id:5,name:'王五']
let arr2 = arr.map(v => return v.name)

console.dir(arr2)
/*
    Array(3)
    0: "张三"
    1: "李四"
    2: "王五"
    length: 3
*/

</script>