ES6-03: Class inheritance and extends and super keywords - Code World

ES6-03: Class inheritance and extends and super keywords

Others 2021-03-02 04:22:52 views: null

extends keyword

Use the entends keyword to allow subclasses to inherit the functions of the parent class.

super keyword

The super keyword is used to call the normal functions and constructors of the parent class.

super calls the constructor of the parent class

Call the normal function of the parent class

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super must be called before subclass this

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Origin blog.csdn.net/sinat_41696687/article/details/113836448

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