Abstract class in JavaScript

I have done this in JAVA some time ago, I had some classes:

-defaultprinter.java
-hpprinter.java
-epsonprinter.java
...

the defaultprinter.java class has a method that can be different on each printer

public void serial() {
  get-serial-depending-on-brand-method()
}

then I have a method that will select what printer to select

if(brand.equals("hp"){
  printer = new hpprinter()
} ...

How can I do this with Javascript?
I want to have every printer splited in separated files

-defaultprinter.js
-hpprinter.js
-epsonprinter.js
...

How can I have the common and overridable method

const serial = () => {
  get-serial-depending-on-brand-method()
}

And how can I select the printer that I want?

if(brand == "hp") {
  printer = ??????
} ...

Thanks for the help

First you need modules, either commons js style or es6 modules style.

After that, you can define regular javascript classes and do the subclassing thing.

--

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