inheritance

RakibRahman · RakibRahman · commit 46ba2b7a6a8e · 2021-06-09T22:00:45.000+06:00
diff --git a/OOP/inheritance.js b/OOP/inheritance.js
@@ -0,0 +1,38 @@
+function Person(name, age) {
+  this.name = name;
+  this.age = age;
+}
+Person.prototype.greet = function () {
+  return `${this.name} is  ${this.age} years old`;
+};
+const rahim = new Person("Fahmid", 21);
+console.log(rahim.greet());
+
+function Racer(name, age, car) {
+  Person.call(this, name, age);
+  this.car = car;
+}
+
+Racer.prototype = Object.create(Person.prototype); //get methods of Person {important}
+Racer.prototype.info = function () {
+  return `${this.name} is a celebrity`;
+};
+
+const racerOne = new Racer("Pain", 25, "BMW");
+console.log(racerOne.age);
+console.log(racerOne.greet());
+
+console.log(racerOne.info());
+
+function Player(name, age, type) {
+  Racer.call(this, name, age);
+  this.type = type;
+}
+Player.prototype = Object.create(Racer.prototype);
+const labib = new Player("labib", 10, "Cricketer");
+console.log(labib.type);
+console.log(labib.greet());
+
+console.log(labib.constructor); // will indicate to Person
+Player.prototype.constructor = Player; // will indicate to Player {important}
+console.log(labib.constructor);
