<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>JS-如何在JSON树形结构中找到子节点的父级路径</title>
<script>
const data = [
{
id:1,
pid:'a',
text:1,
children:[{
id:2,
pid:'b',
text:2,
children:[{
id:3,
pid:'c',
text:3,
children:[{
id:4,
pid:'d',
text:3,
children:[]
},
{
id:5,
pid:'d2',
text:3,
children:[]
}]
}]
}]
}
]
function findIndexArray (data, id, indexArray) {
let arr = Array.from(indexArray)
for (let i = 0, len = data.length; i < len; i++) {
arr.push(data[i].pid)
if (data[i].id === id) {
return arr
}
let children = data[i].children
if (children && children.length) {
let result = findIndexArray(children, id, arr)
if (result) return result
}
arr.pop()
}
return false
}
console.log(findIndexArray(data, 5, [])) // [0, 0, 0]
</script>
</head>
<body>
</body>
</html>
通过修改代码，也可以实现取到路径上的值。