1. 使用 Object.getPrototypeOf();
function Person(name){ this.name = name; } var lilei = new Person("Lilei"); Object.getPrototypeOf(lilei); // {constructor: ƒ} lilei.constructor.prototype; // {constructor: f}
2. 使用 obj.constructor.prototype;
function Person(name){ this.name = name; } var lilei = new Person("Lilei"); lilei.constructor.prototype; // {constructor: ƒ}
3. 使用obj.__proto__;
function Person(name){ this.name = name; } var lilei = new Person("Lilei"); lilei.__proto__; // {constructor: ƒ}
三种方法中, 第一种是最靠谱的, 后面两种都不太靠谱.
