模块模式不是类模式。你不能简单地假装你现在有 JavaScript 类。至于继承,如果你真的需要继承东西,你应该通过构造函数创建一个对象并使用原型继承,尽管它有时执行起来比较慢。
至于创建子模块很简单
MODULE.submodule = (function(){
// another module stuff that can even reference MODULE
return { submodule: 'property' }
})();
现在,至于经典意义上的子类化,您可以在具有原型的对象上模拟它,就像 Douglas Crockford 所做的那样http://www.crockford.com/javascript/inheritance.html
为了用模块模拟它,您可以尝试在原始模块中创建一个密封/解封函数并在您的子模块中使用它们。您可以在此处
查看http://www.pallavlaskar.com/javascript-module-pattern-in-details/
克隆和继承
var MODULE_TWO = (function (old) {
var my = {},
key;
for (key in old) {
if (old.hasOwnProperty(key)) {
my[key] = old[key];
}
}
var super_moduleMethod = old.moduleMethod;
my.moduleMethod = function () {
// override method on the clone, access to super through super_moduleMethod
};
return my;
}(MODULE))
或者
跨文件私有状态
var MODULE = (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;
};
// permanent access to _private, _seal, and _unseal
return my;
}(MODULE || {}));