爲什麼會發生這種不停地說這不是definied

Question

使用Firebug它不斷指出this.speak沒有定義，我不明白爲什麼is.I我試圖將它輸出到屏幕

$(document).ready (function() { 


    function person(rank, number, id) { 
     //properties 
     this.intRank = rank; 
     this.intNumber = number; 
     this.strId = id; 
     this.elOutput = document.getElementById(id); 
     //methods 
     this.speak = fucntion(); { 
      this.elOutput.innerHTML += "<br>" + this.strId; 
     }; 

     //adds one to int number and speaks message 
     this.pickUpNumber = function() { 
      this.intNumber++; 
      this.strId = "i have" + this.intNumber.toString() + "rocks"; 
      this.speak(); 
     }; 
    }; 

    //object 

    var Jak = new person(5, "hey ,jack", " Captain"); 
    var Cap = new person(3, "yea cap?", "jacko"); 

    jak.speak(); cap.speak(); jak.pickUpRock(); 

}); 

Answer 1

this.speak = fucntion(); { 
    this.elOutput.innerHTML += "<br>" + this.strId; 
}; 

我想你的意思function()

和JS是區分大小寫的。

也許這是你試圖完成什麼：

$(document).ready (function() { 
    function person(rank, number, id) { 
     //properties 
     this.intRank = rank; 
     this.intNumber = number; 
     this.strId = id; 
     this.elOutput = document.getElementById(id); 


     //methods 
     this.speak = function() { 
     this.elOutput.innerHTML += "<br>" + this.strId; 
     }; 

     //adds one to int number and speaks message 
     this.pickUpNumber = function() { 
     this.intNumber++; 
     this.strId = "i have" + this.intNumber.toString() + "rocks"; 
     this.speak(); 
     }; 
    } 

    //object 

    var jak = new person(5, "hey ,jack", " Captain"); 
    var cap = new person(3, "yea cap?", "jacko"); 

    jak.speak(); cap.speak(); jak.pickUpNumber(); 
}); 

結帳this jsbin