Build a Calculator with HTML, CSS & JavaScript | Modern Web Dev Tutorial

Build a Calculator with HTML, CSS & JavaScript | Modern Web Dev Tutorial In this comprehensive tutorial, we're building a fully functional and stylish calculator from the ground up using HTML, CSS, and JavaScript. You'll start with a blank slate and, step-by-step, construct the entire project, learning essential web development techniques along the way. We begin by structuring our calculator with semantic HTML, creating the main container, the display screen, and all the necessary buttons for numbers, operations, and the clear function. We then transform that basic structure into a modern, visually appealing design using CSS, complete with shadows, rounded corners, and interactive hover effects. Finally, we bring our calculator to life with JavaScript, adding the logic that makes it perform calculations instantly. This is a perfect project for beginners looking to solidify their understanding of how these three core technologies interact to create a dynamic web application. By the end of this video, you will have a solid grasp of core programming concepts. We'll cover how to efficiently use a `for` loop to attach event listeners to all of the buttons at once, saving you from writing repetitive code. You'll learn how to use the `eval` function to handle the mathematical expressions, a powerful and efficient method. We'll also implement functions to append values to the display and clear everything with a single button press. This project will significantly boost your confidence in manipulating the DOM, handling user interactions, and styling with CSS Grid for a perfect layout. This project is a fantastic milestone in your coding journey, demonstrating how to build a practical and interactive tool. I hope you're excited to start coding along! If you find this tutorial helpful and learned something new, please support the channel by leaving a like on this video—it really helps us grow. I'd love to see your finished calculators, so drop a comment below and let me know how it went or if you have any questions. For more projects like this that will enhance your web development portfolio, make sure to subscribe to the channel and hit the notification bell so you don't miss our next exciting build. Source code: https://www.100jsprojects.com/project/basic-calculator #WebDevelopment #JavaScript #CodingTutorial timestamp: 0:00 - Preview - Basic Calculator 1:50 - HTML - Basic Calculator 18:23 - CSS - Basic Calculator 40:18 - JavaScript - Basic Calculator