如何在JavaScript中重新定义数组上的+运算符？ [英] How to redefine the + operator on Arrays in JavaScript?

问题描述

假设使用JavaScript Array 将点表示为 [x，y] ，我如何定义 + 运算符，其点如下：

Assuming points are represented using JavaScript Array as [x,y], how could I define the + operator on points such that:

[1,2] + [5,10] == [6,12]

推荐答案

JavaScript

JavaScript does not have a facility for overriding the built-in arithmetic operators.

您可以通过覆盖 .valueOf（）来获取一些有限的技巧。 和 .toString（）方法，但我无法想象您将如何完成所要问的事情。

There are some limited tricks you can pull by overriding the .valueOf() and .toString() methods, but I can't imagine how you could do what you're asking.

您当然可以编写一个函数来实现它。

You could of course write a function to do it.

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