Update: files

Author: isinghabhishek

JavaScript Part-01/86Class&ExtendsKeywoard.js

@@ -0,0 +1,58 @@
+//   class practice  and  extends  keywoard
+
+class Animal {
+    constructor(name, age){
+        this.name = name;
+        this.age = age;
+    }
+    eat(){
+        return `${this.name} is eating`;
+    }
+
+    isSuperCute(){
+        return this.age <= 1;
+    }
+
+    isCute(){
+        return true;
+    }
+}
+// const animal1 = new Animal("tom", 2);
+// console.log(animal1);
+// console.log(animal1.eat());
+// console.log(animal1.isSuperCute());
+
+
+// class and extend
+
+
+
+//  Animal is parent class
+//  Dog is sub class
+
+class Dog extends Animal{
+
+}
+const tommy = new Dog("tommy", 3);
+console.log(tommy);
+console.log(tommy.isCute());
+
+// with the help of "extend" keyword we need not to
+// write this much of code
+// class Dog{
+//     constructor(name, age){
+//         this.name = name;
+//         this.age = age;
+//     }
+//     eat(){
+//         return `${this.name} is eating`;
+//     }
+
+//     isSuperCute(){
+//         return this.age <= 1;
+//     }
+
+//     isCute(){
+//         return true;
+//     }
+// }

JavaScript Part-01/87SuperKeywoard.js

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+//  super keywoard
+
+//  super --> parent class
+
+class Animal {
+    constructor(name, age){
+        this.name = name;
+        this.age = age;
+    }
+    eat(){
+        return `${this.name} is eating`;
+    }
+
+    isSuperCute(){
+        return this.age <= 1;
+    }
+
+    isCute(){
+        return true;
+    }
+}
+class Dog extends Animal{
+    constructor(name, age, speed){
+        super(name, age);
+        this.speed = speed;
+    }
+    run(){
+        return `${this.name} is running at ${this.speed}kmph`;
+    }
+}
+//  object  /  instance
+const tommy = new Dog("tommy", 3, 45);
+console.log(tommy);
+console.log(tommy.run());
+console.log(tommy.isCute());
+
+

JavaScript Part-01/88BaseClass.js

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+
+//  same method in base class
+
+class Animal {
+    constructor(name, age){
+        this.name = name;
+        this.age = age;
+    }
+    eat(){
+        return `${this.name} is eating`;
+    }
+
+    isSuperCute(){
+        return this.age <= 1;
+    }
+
+    isCute(){
+        return true;
+    }
+}
+class Dog extends Animal{
+    constructor(name, age, speed){
+        super(name, age);
+        this.speed = speed;
+    }
+    eat(){
+        return `Modified Eat: ${this.name} is eating `
+    }
+    run(){
+        return `${this.name} is running at ${this.speed}kmph`;
+    }
+}
+//  object  /  instance
+const tommy = new Dog("tommy", 3, 45);
+console.log(tommy);
+console.log(tommy.run());
+console.log(tommy.eat());