javascript - 如何从构造函数中删除函数？

Question

如何从构造函数中删除一个函数？

如果 Person 构造函数中有一个名为 greet 的函数，我该如何删除该函数？

function Person(name)
{
    this.name = name;
    this.greet = function greet()
    {
        alert("Hello, " + this.name + ".");
    };
}

我想要的结果是:

function Person(name)
{
    this.name = name;
}

Answer 1

delete this.greet

或

var personInstance = new Person();
delete personInstance.greet // to remove it from the instance from the outside

或

delete Person.prototype.greet // if doing prototypes and inheritance

delete 是一个您很少见到的关键字，但我向您保证，它存在 :P