Coffeescript在给定类的对象的情况下创建该类的新实例

Question

In coffeescript, I have an object created from a class. Later, I no longer have access to that class, but I would like to create a new instance. For example:

# MySingleton.coffee

class MySingleton
module.exports = new MySingleton

and then:

# MySingletonTests.coffee

mySingleton = require './MySingleton'

# testSingleton = ???
# I would like to create a new MySingleton here

I think I would like to use something like JS's Object.create here, but if I call Object.create(mySingleton) it seems to just make a reference to the old object, and mySingleton.prototype is undefined

EDIT : I know I could just export the class in this example, but I was hoping not to because it is a singleton in production code and I would like to make sure it doesn't get new'd, but in my unit testing I would like to make new copies of it so state doesn't persist between tests

Answer 1

事实证明， new myInstance.constructor()确实可以完成我想做的事情。