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class 语法 #72

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xiaochengzi6 opened this issue Mar 10, 2023 · 0 comments

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xiaochengzi6 commented Mar 10, 2023

关于 class 语法参考

class 继承

调用 super 分为两种情况一种是作为函数调用，代表父类的构造函数，es6 中子类的构造函数中必须要调用执行一次 super() ，如果子类没有给定 constructor 函数那么将会自动的补充并调用，

第二种情况 super 作为对象时，在普通方法种 super 指向父类的原型对象，在静态方法种指向父类

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