做标书的任务网站赣州seo公司

两种效果：

1. 只取叶子
2. 全部都要

思路：1 判断有子节点就递归，2传递res接收结果，3 把父path一层层传下去，使用args接收不定参数

let arr = [{path: '1',children: [{ path: '/1.1', children: [{ path: '/1.1.1' }, { path: '/1.1.2 ' }] },{ path: '/1.2 ' },],},{path: '2',children: [{ path: '/2.1', children: [{ path: '/2.1.1' }, { path: '/2.1.2 ' }] },{ path: '/2.2 ' },],},{ path: '3', children: [{ path: '/3.1' }, { path: '/3.2 ' }] },
]

只取叶子

fun(arr)
function fun(arr) {let res = []funSub(arr, res, null)console.log(res)
}function funSub(arr, res, ...args) {arr.forEach((item) => {if (item.children) {funSub(item.children, res, item, ...args)} else {let tmp = item.pathif (args.length > 0) {args.forEach((arg) => {if (arg) {tmp = arg.path + tmp}})}res.push({ path: item.path, tmp })}})
}

效果

[{ path: '/1.1.1', tmp: '1/1.1/1.1.1' },{ path: '/1.1.2 ', tmp: '1/1.1/1.1.2 ' },{ path: '/1.2 ', tmp: '1/1.2 ' },{ path: '/2.1.1', tmp: '2/2.1/2.1.1' },{ path: '/2.1.2 ', tmp: '2/2.1/2.1.2 ' },{ path: '/2.2 ', tmp: '2/2.2 ' },{ path: '/3.1', tmp: '3/3.1' },{ path: '/3.2 ', tmp: '3/3.2 ' }
]

全部都要

fun(arr)
function fun(arr) {let res = []funSub(arr, res, null)console.log(res)
}function funSub(arr, res, ...args) {arr.forEach((item) => {let tmp = item.pathif (args.length > 0) {args.forEach((arg) => {if (arg) {tmp = arg.path + tmp}})}res.push({ path: item.path, tmp })if (item.children) {funSub(item.children, res, item, ...args)}})
}

效果

[{ path: '1', tmp: '1' },{ path: '/1.1', tmp: '1/1.1' },{ path: '/1.1.1', tmp: '1/1.1/1.1.1' },{ path: '/1.1.2 ', tmp: '1/1.1/1.1.2 ' },{ path: '/1.2 ', tmp: '1/1.2 ' },{ path: '2', tmp: '2' },{ path: '/2.1', tmp: '2/2.1' },{ path: '/2.1.1', tmp: '2/2.1/2.1.1' },{ path: '/2.1.2 ', tmp: '2/2.1/2.1.2 ' },{ path: '/2.2 ', tmp: '2/2.2 ' },{ path: '3', tmp: '3' },{ path: '/3.1', tmp: '3/3.1' },{ path: '/3.2 ', tmp: '3/3.2 ' }
]