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2020.10.19叶梦宇

面试题总结

1、prototype的定义

javascript中的每个对象都有prototype属性,Javascript中对象的prototype属性的解释是:返回对象类型原型的引用。

每一个构造函数都有一个属性叫做原型。这个属性非常有用:为一个特定类声明通用的变量或者函数。

2 描述一下脚本