this-fruits-example.js

var fruit1 = {
  name: 'Apple',
  quantity: 2,
  getString: function(){
    // this refers to the object fruit1.
    return `${this.quantity} ${this.name} remaining`    
  }
}

var fruit2 = {
  name: 'Mango',
  quantity: 4,
  getString: function(){
    // this refers to the object fruit2.
    return `${this.quantity} ${this.name} remaining`    
  }
}

console.log(fruit1.getString())
// "2 Apple remaining"
console.log(fruit2.getString())
// "4 Mango remaining"