Day 3 || js Hackerrank solution

 Day3:

Task

Complete the following functions in the editor below:

1. getArea(length, width): Calculate and return the area of a rectangle having sides and .

2. getPerimeter(length, width) : Calculate and return the perimeter of a rectangle having sides

and .

The values returned by these functions are printed to stdout by locked stub code in the editor.

     

Input Format

Constraints

and are scaled to at most three decimal places.

Output Format

Sample Input 0

3

4.5

Sample Output 0

13.5

15

Solution:

'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++];   }       function getArea(length, width) {     let area;     // Write your code here     area=length*width;     return area;     }         function getPerimeter(length, width) {     let perimeter;     // Write your code here     let add=length+width;     perimeter=2*add;         return perimeter;   }       function main() {     const length = +(readLine());     const width = +(readLine());         console.log(getArea(length, width));     console.log(getPerimeter(length, width)); }