Javascript : getting function name with this. 名称

Question

我正在执行下面的代码

function Person(name, age){
 this.name = name || "John";
 this.age = age || 24;
 this.displayName = function(){
  console.log('qq ',this.name);
 }
}

Person.name = "John";
Person.displayName = function(){
    console.log('ww ',this.name);
}

var person1 = new Person('John');
person1.displayName();
Person.displayName();

得到以下输出:

qq  John
ww  Person

我不明白如何在第二个控制台中获取 this.name = Person

Answer 1

如 JS MDN 中所述，它来自 Function.name

A Function object's read-only name property indicates the function's name as specified when it was created, or "anonymous" for functions created anonymously.

function doSomething() {}
doSomething.name; // "doSomething"