关于javascript:js-封装tree数据常用方法

             const filterTree = (options = {})=>{        let ops = {            data: options.data || [],            exclude: options.exclude || {},        }        let excludeAttrs = Object.keys(ops.exclude)        let treeData = []        let dg = (data) =>{            data.forEach((item,index)=>{                excludeAttrs.every(attr=>{                   let attrs = attr.split('.')                   let val = attrs.reduce(a=>{                       return item[a]                   })                   return item[attr] !== ops.exclude[attr]                }) && treeData.push(item)                item.children            })        }            }