获取JavaScript中所有类的实例 [英] Get all instances of class in Javascript

问题描述

我以为已经有了答案，但是似乎找不到答案。.
如何在Java中对该类的所有实例运行特定的类方法？

I thought there would already be an answer for this but I can't seem to find one.. How can I run a particular class method on all instances of this class in Javascript?

必须在我不知道实例名称的情况下执行此操作。
我想我可以在类中使用某种静态变量来存储所有实例，但这在JS中似乎不存在

This has to be done in a situation where I do not know the names of the instances. I think I could use some sort of static variable inside my class to store all instances, but this doesn't seem to exist in JS

所以在类的所有现有实例上调用我的方法？
注意：只是为了澄清：我不是在讲CSS类，而是在讲对象。

So how to call my method on all existing instances of my class? Note : just for clarification : I'm not speaking about CSS classes, I'm speaking about objects.

编辑：按Java类讲，我的意思是在函数上创建新对象：

Edit : By Class in Javascript, I mean the creation of a new object on a function:

function something()
{
}

var instance = new something();

推荐答案

您可以创建一个静态数组并将其存储在您的构造函数：

You can create a static array and store it on your constructor function:

MyClass.allInstances = [];
MyClass.allInstances.push(this);

但是，您需要某种方法来确定何时从该阵列中删除实例，否则您将内存泄漏。

However, you need some way to figure out when to remove instances from this array, or you'll leak memory.

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