Js parses the multi-layer nested json, takes all the parent elements with the same elements to form a new array and returns?

such a multi-layer array,

let json = [
    {
        id: "1",
        name: "1",
        children: [
            {
                id: "1-1",
                name: "1-1",
                children: [
                    {
                        id: "1-1-1",
                        name: "1-1-1"
                    },
                    {
                        id: "1-1-2",
                        name: "1-1-2"
                    }
                ]
            },
            {
                id: "1-2",
                name: "1-2"
            }
        ]
    },
    {
        id: "2-1",
        name: "2-1"
    },
    {
        id: "3-1",
        name: "3-1",
        children: [
            {
                id: "3-1-1",
                name: "3-1-1"
            }
        ]
    }
]

for example, the function is searchParentElementArrays;
when I pass in searchParentElementArrays (json, id), print:

[["1", "1-1", "1-1-1"],["1", "1-1", "1-1-2"],["1", "1-2"],["2-1"],["3-1","3-1-1"]]

the environmental background of the problems and what methods you have tried

related codes

/ / Please paste the code text below (do not replace the code with pictures)

what result do you expect? What is the error message actually seen?

function searchParentElementArrays (json, key) { const res = [] const f = (json, arr) => json.forEach(val => val.children ? f(val.children, [...arr, val[key]]) : res.push([...arr, val[key]])) f(json, []) return res } console.log(searchParentElementArrays(json, 'id'))