Javascript 二维对象/将数组关联为三维对象

从这件事上有什么办法吗

var stateDat = {
ME: ['Maine',1328361],
etc.
};

对此

var stateDatHistory = {
1:[
  ME: ['Maine',1328361],
  etc.
  ],
2:[
  ME: ['Maine',1328361],
  etc.
  ],
etc
};

动态地在函数中？例如，这不起作用

turn = 1;

function start(){
stateDatHistory[turn].push(stateDat);
stateDat['ME'][1]= stateDat['ME'][1] - 500; //changing population
turn++;
}

---

它的历史部分可以是一个对象数组。所以

var stateDatHistory = [
   { ME: ['Maine', 1328361] }
];

或者，如果需要通过一个键引用历史记录中的每个“步骤”，那么它可能是一个具有包含对象的数组值的对象

var stateDatHistory = {
    1: [
        { ME: ['Maine', 12334] }
    ]
}

在后一种情况下，“开始”代码类似于

turn = 1

function start() {
    if (typeof stateDatHistory[turn] === 'undefined') {
        stateDatHistory[turn] = [];
    }
    stateDatHistory[turn].push(stateDat);
    stateDat['ME'][1]= stateDat['ME'][1] - 500; //changing population
    turn++;
}

说到这里，我倾向于提到使用一个对象来包含所有这些状态数据将是一个好的决定。例如，考虑……/P>

// Define our manager
var stateDatManager = function() { };
(function(instance) {

    instance.init = function() {
        // Setup internal state
        this.history = {};
        this.turn = 0;
        this.initialized = true;
    };

    instance.start = function(turn, data) {
        if (!this.initialized) { this.init(); }
        this.turn = turn;
        this.addToHistory(data);
    };

    instance.addToHistory(data) {
        if (typeof this.history[this.turn] === 'undefined') {
            this.history[this.turn] = [];
        }
        this.history[this.turn].push(data);
    };

    instance.advanceTurn() {
        this.turn += 1;
    };

}(stateDatManager.prototype));

// Use it
var manager = new stateDatManager();
manager.start(1, [
    { ME: ['Maine', 1328361] }
]);

// Move to the next turn...
manager.advanceTurn();

// etc.

---

数组文本内部不能有

ME: