扩展
Code:
var blogModule = (function (my) {
my.AddPhoto = function () {
//添加内部代码
};
return my;
}(blogModule));
Say:
将自身传进方法，然后实现了方法的扩展，有点象零件组装啊
Code:
var blogModule = (function (my) {var oldAddPhotoMethod = my.AddPhoto;
my.AddPhoto = function () { // 重载方法，依然可通过oldAddPhotoMethod调用旧的方 }; return my;}(blogModule));
Say:
好处就是可以调用以前的方法。
克隆与继承
Code:
var blogModule = (function (old) { var my = {}, key; for (key in old) { if (old.hasOwnProperty(key)) { my[key] = old[key]; } } var oldAddPhotoMethod = old.AddPhoto; my.AddPhoto = function () { // 克隆以后，进行了重写，当然也可以继续调用oldAddPhotoMethod }; return my; } (blogModule));
Say:
简单的克隆实现
跨文件共享私有对象
Code:
var blogModule = (function (my) { var _private = my._private = my._private || {}, _seal = my._seal = my._seal || function () { delete my._private; delete my._seal; delete my._unseal; }, _unseal = my._unseal = my._unseal || function () { my._private = _private; my._seal = _seal; my._unseal = _unseal; }; return my; } (blogModule || {}));
Say:
blogModule._seal()上锁，_unseal() 开锁，实现内部变量的私有化。我认为这样实现并不是最好的，但是我们可以学习下这个开锁闭锁的功能。