1. /**
    2.  *
    3.  * @param {Array} arrs 树形数据
    4.  * @param {string} childs 树形数据子数据的属性名,常用'children'
    5.  * @param {Array} attrArr 需要提取的公共属性数组(默认是除了childs的全部属性)
    6.  * @returns
    7.  */
    8. function extractTree(arrs,childs,attrArr){
    9.   let attrList = [];
    10.   if(!Array.isArray(arrs)&&!arrs.length)return [];
    11.   if(typeof childs !== 'string')return [];
    12.   if(!Array.isArray(attrArr)||Array.isArray(attrArr)&&!attrArr.length){
    13.     attrList = Object.keys(arrs[0]);
    14.     attrList.splice(attrList.indexOf(childs), 1);
    15.   }else{
    16.     attrList = attrArr;
    17.   }W
    18.   let list = [];
    19.   const getObj = (arr)=>{
    20.     arr.forEach(function(row){
    21.       let obj = {};
    22.       attrList.forEach(item=>{
    23.         obj[item] = row[item];
    24.       });
    25.       list.push(obj);
    26.       if(row[childs]){
    27.         getObj(row[childs]);
    28.       }
    29.     })
    30.     return list;
    31.   }
    32.   return getObj(arrs);
    33. }
    1. const arr = extractTree(list,'childs',['id'])

    1648170924019_7AE2F50A-C464-4db7-B50A-5F7EAB7FAB41.png