多级转一级对象中有children的数组，一级一级嵌套的多级转为一级

//多级转一级对象中有children的数组，一级一级嵌套的多级转为一级
//参数data:{code1:'',code2:'',children:[{code3:'',code4:'',children:[{},{},{}]},{},{}]}
//返回值为数组[{code1:'',code2:'',code3:'',code4:'',...}]

function MultiToOne(data,item) {
  let checkList = [];

let getOne = function (data,item) {
  let objItem = item||{};
  let {children,...others} = data;
  objItem = {
　　　...objItem,
　　　...others,
　　};
  if(typeof data === 'object'&&data.hasOwnProperty('children')){
    for(let i = 0;i < data.children.length;i++){
      getOne(data.children[i],objItem);
    }
  }else{
    checkList.push(objItem);
  }
};

getOne(data); 
return checkList; 
}