Javascript Calculator

A simple JavaScript-based calculator application that allows users to perform basic arithmetic operations such as addition, subtraction, multiplication, and division. The calculator has the following features:

• Display for the current number.
• Buttons for digits (0-9), operators (+, -, *, /), decimal point, and clear button.
• Results are shown immediately after each operation or by clicking on the equal sign.

Features

• Performs basic arithmetic operations: addition, subtraction, multiplication, and division.
• Handles multiple operations in sequence.
• Supports decimal points in calculations.
• Resets the entire calculator.

Files

• index.html: The structure of the calculator, including the screen and buttons.
• style.css: Styling for the calculator layout and appearance.
• script.js: JavaScript code that adds functionality to the calculator.

How to Run

Click here or:

1. Clone or download this repository to your local machine.
2. Open index.html in your web browser.
3. Use the Calculator.

Code Explanation

• Operations: The calculator supports the four basic arithmetic operations: addition, subtraction, multiplication, and division. The operations are stored in the operations object for easy access.

• Number Input: The user can input numbers by clicking the corresponding number buttons. This triggers the addNumber() function which adds numbers to the current input and stores the input in the currentNumber variable.

• Operator Handling: When an operator button is clicked, the addOperator function is called. The current number is pushed into the numbers array, and the selected operator is saved. If two numbers are available, the calculate() function is called.

• Calculation: When the = button is clicked, the calculate() function is triggered, which processes the numbers and the selected operator and displays the result.

• Decimal: The calculator allows entering a decimal point with the addDecimal() function and it ensures that the decimal is only added once to the current number.

• Clear: The AC button calls the resetCalculator() function which resets the calculator by clearing the currentNumber, numbers array, and operator.

  Technologies Used

• HTML

• CSS

• JavaScript