如何从本地范围创建基于实例的全局对象？ [英] How to create global, instance based objects from local scope?

问题描述

我使用了一个全局对象。我知道使用全局对象的缺点，但在这种情况下我想使用它。

I have a single global object I use. I know the cons of using global objects but in this case I want to use it.

我将此全局对象称为对象管道b.c.它将我的模型分支到我的控制器，反之亦然...也许应该把它称为对象分支...反正......

I call this global object the object pipe b.c. it branches my models to my controller and vice versa...maybe should have called it object branch...anyways...

我犯的错误是我想的我只有一个模型在任何给定时间运行...但我没有，有多个。

The mistake I made is that I thought I only had one model running at any given time...but I don't, there are multiple.

因此我不能使用单个静态实现，我每个模型运行时需要和基于实例的一个，一个全局对象管道。

Hence I can't use a single static implementation, I need and instance based one, one global object pipe per each model running.

这是静态版本。 MC代表型号/控制器。

Here is the static versions. MC stands for Model/Controller.

/********************************************************************************************
 *
 * MC - Model/Controller Types
 *
 *******************************************************************************************/

var MC = {};

/**
 **  Object Pipe
 */

MC.o_p = {
    model  :  'default',
    result :  'continue',
    page   :  {},
    args   :  {},
    server :  {},
    hash   :  localStorage.hash
};

我想做这样的事情：

MC.o_p1 = function() {
    return {
        model  :  'default',
        result :  'continue',
        page   :  {},
        args   :  {},
        server :  {},
        hash   :  localStorage.hash
        }
}

但现在返回对象在本地范围内与任何调用它的对象。

but now the return object is in local scope to whatever called it.

I需要基于全局实例的对象。

I need global instance based objects.

我不确定我是在考虑这个问题还是我在问什么可能？

I'm not sure if I'm over thinking this or what I'm asking is possible?

推荐答案

保管您的包裹私下，并且只有一些访问功能：

Hold your package privately and just have some access functions:

var myModel = (function() {

    var model_vars = {
        model: 'default',
        result: 'continue',
        page: {},
        args: {},
        server: {},
        hash: localStorage.hash
    };

    return function() {
        this.get = function(ele) {
            if (model_vars.hasOwnProperty(ele)) {
                return model_vars[ele];
            }

        };

        this.set = function(ele, value) {
            if (model_vars.hasOwnProperty(ele)) {
                return model_vars[ele] = value;
            }

        };

    };

})();

然后你可以这样做：

Model = new myModel();

DEMO： http://jsfiddle.net/maniator/PSsQ3/

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