# How to Get Remainder of Division in Javascript

In this tutorial, you will learn how to get remainder of division in javascript. The remainder of a division is also known as modulus. The division is one of the basic arithmetic operations which every newbie developer should be able to perform without any issue.  But it can also be tricky if you are trying to do the division with 2 numbers that are coming from 2 different input fields.

Almost in every programming language, we have a modulus operator (`%`) to get the remainder of the division and it is also present in javascript. But since the value present in the input field is of string type, we have to convert it into number type using the `Number()` method and then do the calculation using modulus operator (`%`).

In the following example, we have 2 input fields in which we will enter 2 random numbers. Upon click of a button, we will get the remainder of the division and display that on the screen.  Please have a look over the code example and the steps given below.

HTML & CSS

• We have 4 elements in the HTML file (`div`, `input`, `button`, and `h1`). The `div` element is just a wrapper for the rest of the elements.
• The `innerText` for the `button` element is `“Modulus”` and for the `h1` element, it is `“Result”`.
• We have done some basic styling using CSS and added the link to our `style.css` stylesheet inside the `head` element.
• We have also included our javascript file `script.js` with a `script` tag at the bottom.
```<!DOCTYPE html>
<html lang="en">
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
<body>

<div class="container">
<input type="number" id="firstInput" placeholder="Enter Numerator">
<input type="number" id="secondInput" placeholder="Enter Denominator">
<button>Modulus</button>
<h1>Result</h1>
</div>

<script src="script.js"></script>
</body>
</html>```
```.container {
text-align: center;
}

button {
margin-top: 10px;
}

input {
display: block;
margin: 10px auto;
}

input[type=number]::-webkit-inner-spin-button,
input[type=number]::-webkit-outer-spin-button {
-webkit-appearance: none;
margin: 0;
}```

Javascript

• We have selected both the `input` elements, `button` element, and `h1` element using the `document.querySelector()` method and stored them in `firstInput`, `secondInput`, `btnModulus`, and `output` variables respectively.
• We have attached a `click` event listener to the `button` element.
• In the event handler function, we are passing values of both the `input` elements to the `Number()` method and performing the calculation using the modulus operator (`%`). The result is stored in the `result` variable.
• We are displaying the `result` in the `h1` element using the `innerText` property.
```let firstInput = document.querySelector('#firstInput');
let secondInput = document.querySelector('#secondInput');
let btnModulus = document.querySelector('button');
let output = document.querySelector('h1');