CoffeeScript的類 - 通過繼承的對象

Question

的陣列循環我有以下的CoffeeScript：

class Vehicles 
    constructor: (@name) -> 

class Car extends Vehicles 
    setId: (@id) -> 
    setName: (@name) -> 

class Truck extends Vehicles 
    setId: (@id) -> 
    setName: (@name) -> 

m3 = new Car 
m3.setId 2 
m3.setName 'BMW M3' 

m5 = new Car 
m5.setId 4 
m5.setName 'BMW M5' 

「汽車」對象將動態地從數據陣列而產生。

在Vehicles類中，我將如何遍歷所有Car對象並訪問每個單獨的屬性？

謝謝！

Answer 1

與Ruby不同，CoffeeScript在實例化類時不會運行任何幕後代碼;您需要使用構造函數Car來添加您正在談論的功能。所以，舉例來說，保持所有的汽車名單，作爲Vehicles.cars，你可以這樣寫：

class Vehicles 
    @cars = [] 
    constructor: (@name) -> 

class Car extends Vehicles 
    constructor: -> 
    Vehicles.cars.push @ 
    setId: (@id) -> 
    setName: (@name) -> 

遍歷這些結果，並顯示其所有屬性：

console.log(car.id, car.name) for car in Vehicles.cars