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Building a Simple Calculator Using HTML, CSS, and JavaScript

Introduction

In this blog post, I will walk you through the process of creating a simple yet functional calculator using HTML, CSS, and JavaScript. This project helped me sharpen my front-end development skills and provided a hands-on experience with DOM manipulation in JavaScript.

Project Overview

The calculator allows users to perform basic arithmetic operations such as addition, subtraction, multiplication, and division. It features a clean and responsive UI designed using CSS and dynamic functionality powered by JavaScript.

Technologies Used

Development Process

1. Creating the HTML Structure

I used a simple div-based layout to create the calculator interface. The calculator consists of a display screen and buttons for numbers and operations.

2. Styling with CSS

I designed a modern, minimalistic UI with a responsive layout. CSS Grid and Flexbox were used to arrange buttons properly. Hover effects and transitions were added for a better user experience.

3. Adding Functionality with JavaScript

I used event listeners to capture button clicks and update the display. A function was implemented to evaluate expressions and show results. Error handling was added to prevent invalid calculations.

Conclusion

This project was a great learning experience, reinforcing my knowledge of JavaScript and front-end development.

You can check out the full project on my GitHub or view a live demo below:

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