Javascript 如何快速的对 Array 进行整合

[coolair]

var test_list = [
    {id: "1", name: "aaa", upper: "None"},
    {id: "2", name: "bbb", upper: "None"},
    {id: "3", name: "ccc", upper: "None"},
    {id: "4", name: "ddd", upper: "None"},
    {id: "5", name: "aaaa", upper: "1"},
    {id: "6", name: "aaaaa", upper: "5"},
    {id: "7", name: "bbbb", upper: "2"}
]

如何快速的生成如下格式：
var result_list = [
    {
        id: "1",
        name: "aaa",
        upper: "None",
        children: [
            {
                id: "5",
                name: "aaaa",
                upper: "1",
                children: [
                    {id: "6", name: "aaaaa", upper: "5"}
                ]
            },
        ]
    }, {
        id: "2",
        name: "bbb",
        upper: "None",
        children: [
            {id: "7", name: "bbbb", upper: "2"}
        ]
    }, {
        id: "3",
        name: "ccc",
        upper: "None"
    }, {
        id: "4",
        name: "ddd",
        upper: "None"
    },
]

[jtsai]

不太记得 看看 JSON.stringify
可以不

[yangff]

https://gist.github.com/Yangff/383751f551edc0caf0aef720d5c103ac