prototype check in js code example

Example 1: isPrototypeOf js

/"Checks if an object exists in another object's prototype chain."/

function Bird(name) {
  this.name = name;
}

let duck = new Bird("Donald");

Bird.prototype.isPrototypeOf(duck);
// returns true

Example 2: function prototype javascript

function Person(name) {
  this.name = name;
}
Person.prototype.getName = function() {
  return this.name;
}

var person = new Person("John Doe");
person.getName() //"John Doe"