Prototypal instantiation utilizes Object.create and Prototype to create constructor functions used to generate object instances. It eliminates the need for creating shared methods in functional instantiation.
function Animal (name, energy) {
let animal = Object.create(Animal.prototype)
animal.name = name
animal.energy = energy
return animal
}
Animal.prototype.eat = function(amount) {
console.log(`${this.name} is eating.`)
this.energy += amount
}
const leo = Animal('Leo', 7)
leo.eat(5); // Leo is eating.
console.log(leo.energy); // 12References