# 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:ย  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 theย areaย of a rectangle having sidesย lengthย andย width.
2. getPerimeter(length, width): Calculate and return theย perimeterย of a rectangle having sidesย lengthย andย 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
• lengthย andย widthย are scaled to at most three decimal places.

```3
4.5```

```13.5
15```

### Explanation 0

The area of the rectangle isย lengthย xย widthย = 3 x 4.5 = 13.5.
The perimeter of the rectangle isย 2 x (lengthย +ย width) = 2 x (3 + 4.5) = 15.

### Solution โ Day 1: Arithmetic Operators

```'useย strict';

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

letย inputStringย =ย '';
letย currentLineย =ย 0;

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

process.stdin.on('end',ย _ย =>ย {
ย ย ย ย inputStringย =ย inputString.trim().split('\n').map(stringย =>ย {
ย ย ย ย ย ย ย ย returnย string.trim();
ย ย ย ย });
ย ย ย ย
ย ย ย ย main();ย ย ย ย
});

ย ย ย ย returnย inputString[currentLine++];
}

/**
*ย ย ย Calculateย theย areaย ofย aย rectangle.
*
*ย ย ย length:ย Theย lengthย ofย theย rectangle.
*ย ย ย width:ย Theย widthย ofย theย rectangle.
*ย ย ย
*ย ย ย ย Returnย aย numberย denotingย theย rectangle'sย area.
**/
functionย getArea(length,ย width)ย {
ย ย ย ย letย area;
ย ย ย ย //ย Writeย yourย codeย here
ย ย ย ย areaย =ย lengthย *ย width;
ย ย ย ย returnย area;
}

/**
*ย ย ย Calculateย theย perimeterย ofย aย rectangle.
*ย ย ย ย
*ย ย ย ย length:ย Theย lengthย ofย theย rectangle.
*ย ย ย width:ย Theย widthย ofย theย rectangle.
*ย ย ย
*ย ย ย ย Returnย aย numberย denotingย theย perimeterย ofย aย rectangle.
**/
functionย getPerimeter(length,ย width)ย {
ย ย ย ย letย perimeter;
ย ย ย ย //ย Writeย yourย codeย here
ย ย ย ย perimeterย =ย 2ย *(lengthย +ย width);
ย ย ย ย returnย perimeter;
}```