JavaScript FlatMap

gistfile1.js

Array.prototype.flatMap = function (lambda) {
    return Array.prototype.concat.apply([], this.map(lambda));
};

var foo = [
    [
        [{"uuid": 1, "name": "name_1"}],
        [{"uuid": 2, "name": "name_2"}],
        [{"uuid": 3, "name": "name_3"}]
    ],
    [
        [{"uuid": 4, "name": "name_4"}],
        [{"uuid": 5, "name": "name_5"}]
    ],
    [
        [{"uuid": 6, "name": "name_6"}],
        [{"uuid": 7, "name": "name_7"}],
        [{"uuid": 8, "name": "name_8"}],
        [{"uuid": 9, "name": "name_9"}]
    ]
];

var bar = foo.flatMap(function (first) {
    return first.flatMap(function (second) {
        return second;
    });
});

var goo = {};

bar.forEach(function (it) {
    goo[it.uuid] = it.name;
});

console.log(goo);