Class management: Prototype includes easier creation and extension of classes and objects.

类管理：Prototype支持更轻松地创建和扩展类和对象。

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The prototype for all RequiredValidator objects is a Validator instance, which has no properties because no parameters are passed to the Validator constructor.

所有RequiredValidator对象的原型都是一个Validator实例，该实例没有任何属性，因为没有参数传递给Validator构造函数。

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Also note that any new objects created based on the Person prototype would have the birthdate property, making the following code valid.

还要注意基于Person原型创建的新对象都有birthdate属性，因此下面的代码是有效的。

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The team used a prototype to demonstrate the idea, hiding centimetre-scale objects illuminated with polarised green or red laser light.

BBC: Invisibility cloaking benefits from crystal-clear idea