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GeezerVison is showing github.com — JavaScript/035-Construction-function-Inheritance.js at main · jaydattpatel/JavaScript

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035-Construction-function-Inheritance.js

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/*
Author : Jaydatt Patel
Inherit constructor function.
We can also use constructor function to create new derived constructor function same as base super class and sub or derived class.
*/
console.log("---------------------1-----------------------");
function Vehicle(name, color, wheels) {
this.name = name;
this.color = color;
this.wheels = wheels;
this.showV = function () {
console.log(this);
};
}
Vehicle.prototype.getVeh = function () {
console.log(
`Name: ${this.name}, Color: ${this.color}, Wheels: ${this.wheels}`
);
};
console.log(Object.create(Vehicle));
function Car(color, brand, seats) {
Vehicle.call(this, "car", color, 4);
this.brand = brand;
this.seats = seats;
}
// copy all prototype which are inherited in base function
Object.setPrototypeOf(Car.prototype, Vehicle.prototype);
// Car.prototype = Vehicle.prototype;
// or Car.prototype = Object.create(Vehicle.prototype);
//add seperate prototype
Car.prototype.getDetails = function () {
console.log(
`The ${this.color} ${this.name} is of ${this.brand} company. It has seating for ${this.seats} people`
);
};
const car1 = new Car("Black", "Audi", 5);
console.log("car1 : ", car1);
console.log("car1.__proto__ :", car1.__proto__);
car1.getDetails(); // calling inherited method of derived function.
car1.getVeh(); // calling inherited method of base function
console.log("---------------------2-----------------------");
function Book(name, pages, price) {
this.name = name;
this.pages = pages;
this.price = price;
this.bookInfo = function () {
console.log(
`name: ${this.name}, pages: ${this.pages}, price: ${this.price}`
);
};
}
function Author(name, pages, price, authorName) {
Book.call(this, name, pages, price); // calling function call
this.authorName = authorName;
this.authorInfo = function () {
console.log(`authorName: ${this.authorName}`);
};
}
function Motivation_Books(name, pages, price, authorName, details) {
Book.call(this, name, pages, price); // calling function call
Author.call(this, name, pages, price, authorName); // calling function call
this.details = details;
this.getInfo = function () {
console.log(this);
};
}
let book1 = new Motivation_Books(
"XYZ",
200,
"1500 INR",
"Mr.Author",
"New Book For Moto"
);
book1.getInfo();
book1.bookInfo();
book1.authorInfo();
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