改变树形结构里的键值

Question

const target = [{    "title": "人物数据",    "value": "",    "children": [{        "title": "本市常驻人员",        "value": "361,123",        "children": null       },       {        "title": "本市暂住人员",        "value": "361,123",        "children": null       },       {        "title": "本市流动人员",        "value": "361,123",        "children": null       },       {        "title": "往来过省人员",        "value": "361,123",        "children": [{            "title": "出境申请人员",            "value": "361,123",            "children": null           },           {            "title": "火车过省人员",            "value": "361,123",            "children": null           }         ]       }     ]   },   {    "title": "车辆数据",    "value": "",    "children": null   } ]有如下数据结构，如何将里面title都改为name呢，用递归的写法怎么也绕不过来，请高手指教。。

Answer 1

分两种情况递归，数组和对象

replace(target);function replace(target) {  if (target instanceof Array) {
    target.forEach(element => {
      replace(element);
    });
  } else if (target && typeof target === "object") {    Object.keys(target).forEach(key => {      if (target[key] && typeof target[key] === "object") {
        replace(target[key]);
      }      if (key === 'title') {
        target['name'] = target[key];        delete target['title'];
      }
    });
  } else {    return;
  }
}console.log(target);