javascript - 类型错误 : Cannot find function testFunction in object

Question

我已经编写了一个位于我的对象内部的测试函数，但似乎无法访问该函数。我究竟做错了什么？我的意思是我确信我编写的代码很糟糕，但具体是什么导致了错误？:

function player(){

this.green=0;

  function testFunction(){
    this.green=99;
  };  
};

玩家对象在游戏对象中创建:

function game(numPlayers){

  this.playerArray=[];

  switch(numPlayers){
  case 2:
    this.player1=new player();
    this.player2=new player();
    this.playerArray.push(this.player1,this.player2);
  break;
  case 3:
    this.player1=new player();
    this.player2=new player();
    this.player3=new player();
    this.playerArray.push(this.player1,this.player2,this.player3);
  break;
  case 4:
    this.player1=new player();
    this.player2=new player();
    this.player3=new player();
    this.player4=new player();
    this.playerArray.push(this.player1,this.player2,this.player3,this.player4);
  break;
  };

};

当我运行时:

var TE=new game(2);
TE.player1.testFunction();   <---
Logger.log(TE.player1.green);

我在主题行中收到错误。

Answer 1

您需要将 testFunction 定义为玩家对象的成员:

function player(){

  this.green=0;

  this.testFunction = function(){
    this.green=99;
  };  
};

注意“this.testFunction = function() ...”