調用coffescript超級方法

Question

我有以下代碼：

class Animal 
     constructor: (@name) -> 
     say:() -> console.log "Hello from animal called #{ @name }" 

    class Dog extends Animal 

     say:() -> 
      super.say() 
      console.log "Hello from dog called #{ @name }" 

    a = new Animal('Bobby') 
    a.say() 

    d = new Dog("Duffy") 
    d.say()    

結果不

Hello from animal called Bobby 
Hello from animal called Duffy 
Hello from dog called Duffy 

，但我得到了以下錯誤：

Hello from animal called Bobby 
Hello from animal called Duffy 
Uncaught TypeError: Cannot call method 'say' of undefined 

爲什麼超級未定義？如何調用父級方法以擴展它？由於

Answer 1

，我發現自己的答案，它應該是：

class Dog extends Animal 

    say:() -> 
     super 
     console.log "Hello from dog called #{ @name }"