bower install list-to-tree --save

npm install list-to-tree --save

var LTT = require('list-to-tree');
var list = [
{
    id: 1,
    parent: 0
}, {
    id: 2,
    parent: 1
}, {
    id: 3,
    parent: 1
}, {
    id: 4,
    parent: 2
}, {
    id: 5,
    parent: 2
}, {
    id: 6,
    parent: 0
}, {
    id: 7,
    parent: 0
}, {
    id: 8,
    parent: 7
}, {
    id: 9,
    parent: 8
}, {
    id: 10,
    parent: 0
}
];

var ltt = new LTT(list, {
    key_id: 'id',
    key_parent: 'parent'
});
var tree = ltt.GetTree();

console.log( tree );

[{
    "id": 1,
    "parent": 0,
    "child": [
        {
            "id": 2,
            "parent": 1,
            "child": [
                {
                    "id": 4,
                    "parent": 2
                }, {
                    "id": 5,
                    "parent": 2
                }
            ]
        },
        {
            "id": 3,
            "parent": 1
        }
    ]
}, {
    "id": 6,
    "parent": 0
}, {
    "id": 7,
    "parent": 0,
    "child": [
        {
            "id": 8,
            "parent": 7,
            "child": [
                {
                    "id": 9,
                    "parent": 8
                }
            ]
        }
    ]
}, {
    "id": 10,
    "parent": 0
}];

var ltt = new LTT(list, {
    key_id: 'our id key',
    key_parent: 'our parent key',
    key_child: 'our child key'
});

jasmine