ES6 类多重继承 [英] ES6 Class Multiple inheritance

问题描述

我已经在 BabelJS 和 MDN(根本没有任何信息)，但如果我在四处寻找时不够小心，请随时告诉我有关 ES6 规范的更多信息.

I've done most of my research on this on BabelJS and on MDN (which has no information at all), but please feel free to tell me if I have not been careful enough in looking around for more information about the ES6 Spec.

我想知道 ES6 是否像其他鸭子类型的语言一样支持多重继承.例如，我可以执行以下操作:

I'm wondering whether or not ES6 supports multiple inheritance in the same fashion as other duck-typed languages do. For instance, can I do something like:

class Example extends ClassOne, ClassTwo {
    constructor() {
    }
}

将多个类扩展到新类?如果是这样，解释器会更喜欢 ClassTwo 的方法/属性而不是 ClassOne 吗?

to extend multiple classes on to the new class? If so, will the interpreter prefer methods/properties from ClassTwo over ClassOne?

推荐答案

一个对象只能有一个原型.可以通过创建一个父对象作为两个父原型的组合来继承两个类.

An object can only have one prototype. Inheriting from two classes can be done by creating a parent object as a combination of two parent prototypes.

子类化的语法使得可以在声明中做到这一点，因为 extends 子句的右侧可以是任何表达式.因此，您可以根据自己喜欢的任何标准编写一个组合原型的函数，并在类声明中调用该函数.

The syntax for subclassing makes it possible to do that in the declaration, since the right-hand side of the extends clause can be any expression. Thus, you can write a function that combines prototypes according to whatever criteria you like, and call that function in the class declaration.

这篇关于ES6 类多重继承的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！