Day 4: Create a Rectangle Object | 10 Days Of JavaScript | HackerRank Solution

Hello coders, today we are going to solve Day 4: Create a Rectangle Object HackerRank Solution which is a part of 10 Days of JavaScript Series.

Day 4: Create a Rectangle Object

Objective

In this challenge, we practice creating objects.

Task

Complete the function in the editor. It has two parameters: a and b. It must return an object modeling a rectangle that has the following properties:

  • length: This value is equal to a.
  • width: This value is equal to b.
  • perimeter: This value is equal to 2 * (a + b).
  • area: This value is equal to a * b

Note: The names of the object’s properties must be spelled correctly to pass this challenge.

Input Format

The first line contains an integer denoting a.
The second line contains an integer denoting b.

Constraints

  • 1 <= a, b<= 100

Output Format

Return a object that has the properties specified above. Locked code in the editor prints the returned object’s lengthwidthperimeter, and area to STDOUT.

Sample Input 0

4
5

Sample Output 0

4
5
18
20

Explanation 0

Given a length of a = 4 and a width of b = 5, the Rectangle object’s perimeter is 4 + 4 +5 + 5 = 18 and its area is 4*5 = 20.

Solution – Day 4: Create a Rectangle Object

'use strict';

process.stdin.resume();
process.stdin.setEncoding('utf-8');

let inputString = '';
let currentLine = 0;

process.stdin.on('data', inputStdin => {
    inputString += inputStdin;
});

process.stdin.on('end', _ => {
    inputString = inputString.trim().split('\n').map(string => {
        return string.trim();
    });
    
    main();    
});

function readLine() {
    return inputString[currentLine++];
}

/*
 * Complete the Rectangle function
 */
function Rectangle(a, b) {
    this.length = a;
    this.width = b;
    this.perimeter = 2 * (a + b);
    this.area = a * b;
}


function main() {
    const a = +(readLine());
    const b = +(readLine());
    
    const rec = new Rectangle(a, b);
    
    console.log(rec.length);
    console.log(rec.width);
    console.log(rec.perimeter);
    console.log(rec.area);
}

Disclaimer: The above Problem (Create a Rectangle Object) is generated by Hacker Rank but the Solution is Provided by CodingBroz. This tutorial is only for Educational and Learning Purpose.

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