This tutorial guides you through building a sleek calculator using vanilla HTML, CSS, and JavaScript. It's an ideal project for honing your logical programming skills and showcasing them in your portfolio. We'll leverage various JavaScript methods and functions to create an impressive calculator, with detailed explanations provided for every step from HTML syntax to modern styling, including hover effects and intricate logical functions.
- Scientific calculator functionality including trigonometric functions, logarithms, and constants (π, e).
- Dark and light theme toggle.
- Responsive design for various screen sizes.
- Keyboard support for input.
- Addition, subtraction, multiplication, and division operations.
- Clear functionality to reset the calculator.
- Ability to delete the last character in the expression.
- Support for decimal numbers.
- Percentage calculations.
- Toggle between positive and negative numbers.
- ARIA labels for improved screen reader support.
- Keyboard navigation friendly.
- High contrast theme options.
Throughout this tutorial, you'll gain insights into various JavaScript logic concepts, including:
- Utilization of string methods.
- Understanding of
isNaN
andisFinite
functions. - Implementation of event listeners.
- Usage of regular expressions.
- Exploration of Math and Number objects.
- Application of logical and comparison operators.
- Introduction to the
eval
function.
- GitHub: GitHub
- VS Code: Visual Studio Code
- GitHub Pages: GitHub Pages
- JavaScript Reference: MDN Web Docs