# Day 1: Arithmetic Operators Solution

Hello Friends in this article i am gone to share Hackerrank 10 days of javascript solutions with you. | Day 1: Arithmetic Operators Solution.

Also visit this link:  Day 0: Data Types Solution

## Day 1: Arithmetic Operators Solution

### Objective

In this challenge, we practice using arithmetic operators. Check out the attached tutorial for resources.

Complete the following functions in the editor below:

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

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

### Input Format

getArea

getPerimeter(length, height)

### Constraints

• 1 <= length, width <= 1000
• length and width are scaled to at most three decimal places.

```3
4.5```

```13.5
15```

### Explanation 0

The area of the rectangle is length x width = 3 x 4.5 = 13.5.
The perimeter of the rectangle is 2 x (length + width) = 2 x (3 + 4.5) = 15.

### Solution – Day 1: Arithmetic Operators

```'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();
});

return inputString[currentLine++];
}

/**
*   Calculate the area of a rectangle.
*
*   length: The length of the rectangle.
*   width: The width of the rectangle.
*
*    Return a number denoting the rectangle's area.
**/
function getArea(length, width) {
let area;
// Write your code here
area = length * width;
return area;
}

/**
*   Calculate the perimeter of a rectangle.
*
*    length: The length of the rectangle.
*   width: The width of the rectangle.
*
*    Return a number denoting the perimeter of a rectangle.
**/
function getPerimeter(length, width) {
let perimeter;
// Write your code here
perimeter = 2 *(length + width);
return perimeter;
}```