javascript - OOP Javascript - 通过另一个公共(public)方法从公共(public)方法访问特权方法

Question

var Person = function (name, age) {
    this.name = name;
    this.age = age;
}

Person.prototype.scream = function () {
    this.WhatToScream.screamAge();
}

Person.prototype.WhatToScream = function () {
    this.screamAge = function () {
        alert('I AM ' + this.age + ' YEARS OLD!!!');
    }
    this.screamName = function () {
        alert('MY NAME IS ' + this.name + '!!!')
    }
}

var man = new Person('Berna', 21);
man.scream();


// This code raises:
// Uncaught TypeError: Object WhatToScream has no method 'screamAge'

Answer 1

这是更接近原始代码的重新定义:

Person.prototype.scream = function () {
  new this.WhatToScream().screamAge();
}