javascript - 遍历一个javascript数组将值添加到另一个数组

Question

如何遍历这个数组，我想循环并将名称值添加到一个空数组，当我控制台 .log 它给出下面的结果时，你能帮忙吗，我的代码的结果是空数组

this.props.names it shows

(3) [{…}, {…}, {…}] 0: {name: "abc", id: 1} 1: {name: "def", id: 2} 2: {name: "gh", id: 3} length: 3 proto: Array(0)

let titles = []
let cats = []
 cats = this.props.names
 let len = this.props.names.length;
 for( i = 0 ;i< cats.length ; i++){
    titles.push(cats[i].id)
 }

return titles;

Answer 1

据我所见...做

let titles = []
let cats = [{name: "abc", id: 1},{name: "def", id: 2},{name: "gh", id: 3}]
 for( var p = 0 ;p< cats.length ; p++){
    titles.push(cats[p].id)
 }

console.log(titles)