在javascript中創建對象數組

Question

爲什麼下面的JavaScript代碼不適合我？我應該在下面的代碼中做出什麼改變？

function person(firstname, lastname, age, eyecolor) 
{ 
    this.firstname = firstname; 
    this.lastname = lastname; 
    this.age = age; 
    this.eyecolor = eyecolor; 
} 

for(var i = 0; i < 10; i++) 
{ 
    myFather[i] = new person("John", "Doe", i, "blue"); 
} 

for(var i = 0; i < 10; i++) 
{ 
    document.write(myFather[i].firstname + " is " + 
        myFather[i].age + " years old."); 
} 

Answer 1

我看不到myFather正在任何地方被初始化。在將數組值分配給它之前，您需要這樣做。

var myFather = []; 

Answer 2

myFather變量沒有被初始化：

var myFather = new Array();