定义上的对象get和set方法。其实这可能只是对仪表对象，只有它的后代来定义，但是这是容易做到的。

Define get and set methods on an Object. Actually it could be defined just on the dashboard object and only its descendants, but that's easy to do.

Object.prototype.get = function(prop) {
    this[prop] = this[prop] || {};
    return this[prop];
};

Object.prototype.set = function(prop, value) {
    this[prop] = value;
}

通过嵌套的属性使用该的get（）方法迭代，并调用设置（）每当值必须集。

Iterate through nested properties using this get() method and call set() whenever a value has to be set.

var dashboard = {};

dashboard.get('pages').get('user').set('settings', 'oh crap');
// could also set settings directly without using set()
dashboard.get('pages').get('user').settings = 'oh crap';

console.log(dashboard); //​​​​​​​​​​​​​​​ {pages: {user: {settings: "oh crap"}}};

您还可以扩展/修改 GET 方法接受嵌套属性作为单独的参数或的数组的或的字符串。利用这一点，你只需要调用get一次：

You could also extend/modify the get method to accept the nested properties as individual arguments or an array or a string. Using that, you'd only have to call get once:

// get accepts multiple arguments here
dashboard.get('pages', 'user').set('settings', 'something');

// get accepts an array here
dashboard.get(['pages', 'user']).set('settings', 'something');

// no reason why get can't also accept dotted parameters
// note: you don't have to call set(), could directly add the property
dashboard.get('pages.user').settings = 'something';

更新

由于一般返回一个对象，不知道你是否需要一个数组或一些其他类型的对象，所以你将有get方法来指定自己：

Since the get method generically returns an object and does not know whether you need an array or some other type of object, so you would have to specify that yourselves:

dashboard.get('pages.user').settings = [];

然后，你可以推项目的设置阵列

Then you could push items to the settings array as

dashboard.get('pages.user').settings.push('something');
dashboard.get('pages.user').settings.push('something else');

要实际拥有get函数从给定的字符串构造对象的层次结构，如pages.user，你就必须将字符串分成几部分，并检查是否每个嵌套对象存在。这里是 GET 的修改版本，它做到了这一点：

To actually have the get function construct the object hierarchy from a given string such as pages.user, you would have to split the string into parts and check if each nested object exists. Here is a modified version of get that does just that:

Object.prototype.get = function(prop) {
    var parts = prop.split('.');
    var obj = this;
    for(var i = 0; i < parts.length; i++) {
        var p = parts[i];
        if(obj[p] === undefined) {
            obj[p] = {};
        }
        obj = obj[p];
    }
    return obj;
}

// example use
var user = dashboard.get('pages.user');
user.settings = [];
user.settings.push('something');
user.settings.push('else');

console.log(dashboard); // {pages: {user: {settings: ["something", "else"] }}}

// can also add to settings directly
dashboard.get('pages.user.settings').push('etc');