Fun and Colorful Calculator
About this app
A fun and colorful simple calculator app with interactive features.
Fun and Colorful Calculator 0 C / * 7 8 9 - 4 5 6 + 1 2 3 = 0
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Source
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width,initial-scale=1">
<title>Fun and Colorful Calculator</title>
<meta name="description" content="A fun and colorful simple calculator app with interactive features."/>
<meta name="keywords" content="calculator, web app, simple calculator, educational tool, interactive"/>
<!-- Libraries -->
<!-- jQuery (3.6.0) -->
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.6.0/jquery.min.js" crossorigin="anonymous"></script>
<!-- Bootstrap CSS (5.3.3) -->
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/css/bootstrap.min.css" crossorigin="anonymous">
<!-- Bootstrap JS (5.3.3) -->
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/js/bootstrap.min.js" crossorigin="anonymous">
</script>
<!-- Font Awesome (6.6.0) -->
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/@fortawesome/fontawesome-free@6.6.0/css/fontawesome.min.css" crossorigin="anonymous">
<script type="text/javascript">
try {
// App Javascript Goes Here. Place your entire script content inside the try block for error handling.
let currentInput = '';
let operator = null;
let firstInput = '';
function appendNumber(number) {
currentInput += number;
updateDisplay();
}
function chooseOperator(op) {
if (currentInput === '') return;
if (firstInput !== '') {
calculate();
}
operator = op;
firstInput = currentInput;
currentInput = '';
}
function calculate() {
let computation;
const prev = parseFloat(firstInput);
const current = parseFloat(currentInput);
if (isNaN(prev) || isNaN(current)) return;
switch (operator) {
case '+':
computation = prev + current;
break;
case '-':
computation = prev - current;
break;
case '*':
computation = prev * current;
break;
case '/':
computation = prev / current;
break;
default:
return;
}
currentInput = computation;
operator = null;
firstInput = '';
updateDisplay();
}
function reset() {
currentInput = '';
operator = null;
firstInput = '';
updateDisplay();
}
function updateDisplay() {
document.getElementById('display').innerText = currentInput || '0';
}
document.addEventListener("DOMContentLoaded", function() {
const numberButtons = document.querySelectorAll('.number');
numberButtons.forEach(button => {
button.addEventListener('click', () => appendNumber(button.innerText));
});
const operatorButtons = document.querySelectorAll('.operator');
operatorButtons.forEach(button => {
button.addEventListener('click', () => chooseOperator(button.innerText));
});
const equalsButton = document.getElementById('equals');
equalsButton.addEventListener('click', calculate);
const clearButton = document.getElementById('clear');
clearButton.addEventListener('click', reset);
});
} catch (error) {
throw error;
}
</script>
<style>
body {
background: linear-gradient(to right, #6a11cb, #2575fc);
color: white;
font-family: 'Arial', sans-serif;
}
#main-container {
margin-top: 100px;
}
.calculator {
background: rgba(255, 255, 255, 0.1);
border-radius: 10px;
padding: 20px;
box-shadow: 0 0 20px rgba(0, 0, 0, 0.3);
text-align: center;
}
#display {
background: #ffffff;
border-radius: 10px;
color: black;
font-size: 2rem;
padding: 10px;
margin-bottom: 20px;
}
.button {
padding: 15px;
border: none;
border-radius: 10px;
margin: 5px;
font-size: 1.25rem;
cursor: pointer;
transition: all 0.3s;
}
.button:hover {
transform: scale(1.05);
}
.number {
background: #29cc97;
}
.operator {
background: #f09ae3;
}
#equals {
background: #ffc914;
}
#clear {
background: #fb3d1a;
}
</style>
</head>
<body>
<div id="main-container" class="container">
<div class="calculator">
<div id="display">0</div>
<div>
<button id="clear" class="button">C</button>
<button class="operator button">/</button>
<button class="operator button">*</button>
</div>
<div>
<button class="number button">7</button>
<button class="number button">8</button>
<button class="number button">9</button>
<button class="operator button">-</button>
</div>
<div>
<button class="number button">4</button>
<button class="number button">5</button>
<button class="number button">6</button>
<button class="operator button">+</button>
</div>
<div>
<button class="number button">1</button>
<button class="number button">2</button>
<button class="number button">3</button>
<button id="equals" class="button">=</button>
</div>
<div>
<button class="number button">0</button>
</div>
</div>
</div>
</body>
</html>
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