If module.exports creates a new class, is it newly created if called with require? Or does it only work with one? in node.js

I’m worried about the memory increase.

If I use require as below, does the class create memory every time?

------------ a.js -------------`
class a {
 constructor(){
   }
}

module.exports = new a();
---------------

const IsMemoryIncrease = require('a');

>Solution :

Run this

// b.js
const IsMemoryIncrease1 = require('./a');
const IsMemoryIncrease2 = require('./a');

console.log(IsMemoryIncrease1);
console.log(IsMemoryIncrease2);
console.log(IsMemoryIncrease2 == require('./a'));