Markdium-Functional Programming vs Object Orietned programming in JavaScript

Markdium-javascript.js

class Plant {
  constructor(name, colour = green) {
    this.name = name
    this.colour = colour
    this.height = 10
  }

  grow() {
    this.height++
    return this.height
  }
}

class Aloevera extends Plant {
  constructor(name, colour, size) {
    super(name, colour)
    this.size = size
  }

  giveJelly() {
    this.height--
  }
}