将扁平化的数组还原成树

///将扁平化之后的数组还原成树  buildTree = (list) => {    let dataArray = [];    list.forEach(item=>{      if(item._parent_path ===‘‘){        dataArray.push(item);      }    });    return this.data2treeDG(list, dataArray);  };  data2treeDG(datas, dataArray){    dataArray.forEach(item=>{      let childrenArray = [];      let CATL_CODEP = item._path;      datas.forEach(items=>{        let data = items;        let CATL_PARENT = data._parent_path;        if(CATL_CODEP===CATL_PARENT){          childrenArray.push(items);        }      });      item.children = childrenArray;      if(childrenArray.length > 0) {//有儿子节点则递归        this.data2treeDG(datas, childrenArray);      }    });    return dataArray;  }};

原文地址：https://www.cnblogs.com/boonook/p/10172167.html