JavaScript 继承最佳实践（寄生组合式继承）

inherit.js

function inherit (SubType, SuperType) {
    if (Object.create) {
        var prototype = Object.create(SuperType.prototype);
        prototype.constructor = SubType;
        SubType.prototype = prototype;
        return;
    }
    function F() {}
    F.prototype = SuperType.prototype;
    var prototype = new F();
    prototype.constructor = SubType;
    SubType.prototype = prototype;
};

/**
 * SuperType(){}
 *
 * SubType(){
 *     SuperType.call(this);
 *     ...
 * }
 *
 * inherit(SubType, SuperType);
 */