Hello everyone, in this post, we are going to create a calculator in javascript. In the last post, we discuss a Side menu in HTML, CSS, and javascript. Let’s see, how to create a calculator in javascript.

Calculator in Javascript:

A calculator is used to calculate the basic operations. It helps us to solve the questions because its speed is fast compared to humans. This calculator is a simple calculator and it is designed using CSS properties. It’s also working.


 As HTML is a markup language and we use this language to create the web page skeleton. In this case, we have created the skeleton of the calculator. We can only create the skeleton of the calculator in HTML but we can’t design it using Html.

CSS properties:

CSS has a huge list of properties and we can use these properties for free to design our website pages. As you can see in the image we have created a calculator in javascript. We have designed the screen and buttons of the calculator with the help of CSS properties. This calculator has a soft UI.

Javascript libraries:

Javascript has a huge list of libraries. It is used for various purposes. We have used the javascript libraries just to add the functionalities to our calculator buttons and switch from dark mode to light mode. Calculator cant work without javascript libraries. This is a basic calculator. So, if you want to create this type of simple calculator in javascript then follow us.

How to create a calculator in javascript:

To build such a type of calculator, we need to follow four steps. These steps will help us to create this calculator in a systematic way.

Download a code editor:

It is the basic need for creating this type of project in HTML, CSS, and javascript. We have used a lot of code editors in our projects. But in this project, we will be using vs code.

Html source code:

Now save the file by using the extension .html at the end of the file name. This extension will understand the browser and code editor to understand the type of file.

CSS source code:

Again create a new file for CSS. It will convert the file into a CSS file. The compiler and code editor will understand the type of the file by using the extension of .css at the end of the file name.

Javascript source code:

Download source code:

If you are unable to use or connect the files with each other. Then we created a solution. The source code file is given below and it is downloadable for free. The download button is given below.

If you have any questions related to the calculator in javascript then ask these questions in the comment section. We will try to clear your doubts related to the calculator.

Thanks for reading this article.

Download Source CodeClick to Download
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