FreeCodeCamp - Object Oriented and Functional Programming
FreeCodeCamp-ObjectOrientedandFunctionalProgrammingDeclareJavaScriptObjectsasVariables在我们深入面向对象编程之前,让我们先回顾一下Javascript的对象(Object)任务:给你的motorBike对象添加wheels,engines和seats属性,并且设置他们的数量。varcar={"wheels":4,