I am using JS modules to organise shared code in my app. The problem I have found with classes is that you need to keep track of the created instance and get it to where it is needed later. However since a module is only imported once is it not easier to store data in an exported object and import again as needed? Ie:

const serviceTestObject = {

  date: "",

  setDate: function() {
    console.log("Setting")
    this.date = new Date().toLocaleTimeString()
  },

  getDate: function() {
    console.log(this.date, ": Date/Time object literal")
  }
  
}

export default serviceTestObject

So when I import this again I get the original value as expected where/when setDate() was called. Is there a potential problem with this and/or reason I should be using JavaScript classes?