Javascript 使用下划线根据名称将对象属性分组为单独的较小对象

目前，我有一个对象，它有多个键，前缀是“_id（实际上是一个数字）”，比如so:

    var obj = {
outFieldType_25669: "Select a type"
outFieldType_97327: "Select a type"
outfieldWallType_25669: "Select a type"
outfieldWallType_97327: "Select a type"

scoreboardDetailsShown_25669: "e.g. players name, photo, stats, etc..."
scoreboardDetailsShown_97327: "e.g. players name, photo, stats, etc..."
scoreboardOperatedBy_25669: "Select a type"
scoreboardOperatedBy_97327: "Select a type"

warningTrackType_25669: "Select a type"
warningTrackType_97327: "Select a type"
};

我想做的是将该对象拆分为更小的对象，这些对象按结束前缀分组，这是预期结果的一个示例：

objA = {
    outFieldType_97327: "Select a type",
    outfieldWallType_97327: "Select a type",
    scoreboardDetailsShown_97327: "e.g. players name, photo, stats, etc..."
    scoreboardOperatedBy_97327: "Select a type",
    warningTrackType_97327: "Select a type"
};

objB = {
   outFieldType_25669: "Select a type",
   outfieldWallType_25669: "Select a type",
   scoreboardDetailsShown_25669: "e.g. players name, photo, stats, etc...",
   scoreboardOperatedBy_25669: "Select a type",
   warningTrackType_25669: "Select a type"
};

---

使用

\每个

迭代对象，

从键中分割id并将其存储在单独的对象中，例如

var sorted = {};

var obj = {
    outFieldType_25669: "Select a type",
    outFieldType_97327: "Select a type",
    outfieldWallType_25669: "Select a type",
    outfieldWallType_97327: "Select a type",
    scoreboardDetailsShown_25669: "e.g. players name, photo, stats, etc...",
    scoreboardDetailsShown_97327: "e.g. players name, photo, stats, etc...",
    scoreboardOperatedBy_25669: "Select a type",
    scoreboardOperatedBy_97327: "Select a type",
    warningTrackType_25669: "Select a type",
    warningTrackType_97327: "Select a type"
};

_.each(obj, function (value, key) {
    var id = key.split("_")[1];
    if (sorted[id] === undefined) {
        sorted[id] = {}
    };
    sorted[id][key] = value;
});

console.log(sorted);

看看这个。
我认为下划线在这里没有帮助。不过，手动操作并不复杂。哦，你为他扼杀了乐趣：）。