使函数在闭包全局中声明而不使用窗口

这应该有效:

var globalFoo;

(function ()
{
    ...

    foo = function (a, b)
    {
        ...
    }

    foo.prototype =
    {
        ...
    }

    globalFoo = foo;
    // window.foo = foo; // Not Possible
}());

我在浏览器上运行的常规HTML中进行了测试,运行正常。示例如下:

var globalFoo;
console.log("O1")
console.log(globalFoo);

(function(){
    console.log("I1")
    console.log(globalFoo);

    var x = 13;

    var foo = function() {
        console.log('foo caled ' + x);
        x++;
        return true;
    }

    foo();

    globalFoo = foo;

    console.log("I2")
    console.log(globalFoo); 
})();

console.log("O1")
console.log(globalFoo);
console.log(globalFoo());

Firebug输出为:

O1
undefined
I1
undefined
foo caled 13
I2
function()
O1
function()
foo caled 14
true