js 获取多级路径

 let treeData = [{
      id: 1,
      label: '一级 1',
      children: [{
        id: 4,
        label: '二级 1-1',
        children: [{
          id: 9,
          label: '三级 1-1-1'
        }, {
          id: 10,
          label: '三级 1-1-2'
        }]
      }]
    }, {
      id: 2,
      label: '一级 2',
      children: [{
        id: 5,
        label: '二级 2-1'
      }, {
        id: 6,
        label: '二级 2-2'
      }]
    }, {
      id: 3,
      label: '一级 3',
      children: [{
        id: 7,
        label: '二级 3-1'
      }, {
        id: 8,
        label: '二级 3-2'
      }]
    }];

const findNodeInTree = (data, key, callback) => {
      for (let i = 0; i < data.length; i++) {
        if (data[i].label == key) {
          return callback(data[i], i, data)
        }
        if (data[i].children) {
          findNodeInTree (data[i].children, key, callback)
        }
      }
    }
  
    // 所查找到的节点要存储的方法
    let ObjResult={}
    findNodeInTree(treeData, "二级 1-1", (item, index, arr) => {
      ObjResult== item
    })
  
    // 此时就是ObjResult=对应的要查找的节点
    console.log(ObjResult) 

let res = [{
  name:"一级-1",
  children:[{
    name:"二级-1",
    children:[{
      name:"三级-1-1",
      children:[{
        name:"四级-1-1-1"
      }]
    },{
      name:"三级-1-2",
      children:[{
        name:"四级-1-2-1"
      }]
    }]
  },{
    name:"二级-2",
    children:[{
      name:"三级-2-1",
      children:[{
        name:"四级-2-1-1"
      }]
    },{
      name:"三级-2-2",
      children:[{
        name:"四级-2-2-1"
      }]
    }]
  }]
}]   

function treeFindPath(tree,func,path=[]){
  if(!tree) return[]
  for(let data of tree){
    path.push(data.name)
    console.log(path)
    if(func(data)){
       return path
    } 
    if(data.children){
      const findChildren = treeFindPath(data.children,func,path)
      console.log(findChildren,"children")
      if(findChildren.length) return findChildren
    }
     
    path.pop()
    // console.log(path)
  }
  return []
}
let result = treeFindPath(res,data=>data.name=='四级-2-2-1')
console.log(result)

let testResult
function treeFindPath(tree,func,path=[]){
  if(!tree) return[]
  for(let data of tree){
    path.push(data.name)
    console.log(path)
    if(func(data)){
        let path1 = JSON.stringify(path || [])
        testResult = JSON.parse(path1)
        // return path
    } 
    if(data.children){
      const findChildren = treeFindPath(data.children,func,path)
      // console.log(findChildren,"children")
      // if(findChildren.length) return findChildren
    }
     
    path.pop()
  }
}
let result = treeFindPath(res,data=>data.name=='四级-2-2-1')
console.log(testResult)