Question

如何调用以下功能和我的预期输出是＆＃34;嗨约翰，我的名字是詹姆斯＆＃34;

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

Person.prototype.greet = function(otherName){
  return "Hi " + otherName + ", my name is " + name; // not working
}

名称未在上述代码中定义。

Answer 1

使用this.name

＆＃13;

function Person(name){
  this.name = name;
}

Person.prototype.greet = function(otherName){
  return "Hi " + otherName + ", my name is " + this.name;
}

var p = new Person("Foo");
console.log(p.greet("Bar"));   // "Hi Bar, my name is Foo"

＆＃13;

Answer 2

访问此对象上附加的属性，嗯..您必须调用this.

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

Person.prototype.greet = function(otherName){
  return "Hi " + otherName + ", my name is " + this.name;
}

使用javascript调用其他函数

2 个答案: