Colorful Normal Calculator
About this app
A fun and colorful normal calculator app with responsive design and basic arithmetic operations.
Colorful Normal Calculator 0 7 8 9 ÷ 4 5 6 × 1 2 3 - 0 C = +
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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>Colorful Normal Calculator</title>
<meta name="description" content="A fun and colorful normal calculator app with responsive design and basic arithmetic operations.">
<meta name="keywords" content="calculator, normal calculator, arithmetic operations, simple calculator, web app">
<!-- 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 = "";
function appendToInput(value) {
currentInput += value;
updateResult();
}
function clearInput() {
currentInput = "";
updateResult();
}
function calculate() {
try {
currentInput = eval(currentInput).toString();
} catch (error) {
currentInput = "Error";
}
updateResult();
}
function updateResult() {
document.getElementById('result').innerText = currentInput;
}
// This will run when the DOM is ready.
document.addEventListener("DOMContentLoaded", function() {
const buttons = document.querySelectorAll('.calc-button');
buttons.forEach(button => {
button.addEventListener('click', function () {
const value = this.getAttribute('data-value');
if (value === '=') {
calculate();
} else if (value === 'C') {
clearInput();
} else {
appendToInput(value);
}
});
});
});
} catch (error) {
// This will throw the error to the parent window.
throw error;
}
</script>
<style>
body {
background: linear-gradient(135deg, #f5f7fa, #c3cfe2);
display: flex;
justify-content: center;
align-items: center;
height: 100vh;
font-family: Arial, sans-serif;
}
#main-container {
background: white;
border-radius: 10px;
box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
padding: 20px;
width: 320px;
}
#result {
font-size: 2em;
color: #333;
text-align: right;
padding: 10px 0;
border: 1px solid #ddd;
margin-bottom: 20px;
background: #f9f9f9;
border-radius: 5px;
}
.calc-button {
background: #4e73df;
color: white;
border: none;
border-radius: 5px;
padding: 15px;
margin: 5px;
font-size: 20px;
cursor: pointer;
transition: background 0.3s;
outline: none;
}
.calc-button:hover {
background: #2e59d9;
}
.calc-button:active {
background: #1d43bd;
}
.operator {
background: #e74a3b;
}
.operator:hover {
background: #c0392b;
}
.operator:active {
background: #a9342e;
}
</style>
</head>
<body>
<div id="main-container" class="container">
<div id="result">0</div>
<div class="text-center">
<button class="calc-button" data-value="7">7</button>
<button class="calc-button" data-value="8">8</button>
<button class="calc-button" data-value="9">9</button>
<button class="calc-button operator" data-value="/">÷</button>
</div>
<div class="text-center">
<button class="calc-button" data-value="4">4</button>
<button class="calc-button" data-value="5">5</button>
<button class="calc-button" data-value="6">6</button>
<button class="calc-button operator" data-value="*">×</button>
</div>
<div class="text-center">
<button class="calc-button" data-value="1">1</button>
<button class="calc-button" data-value="2">2</button>
<button class="calc-button" data-value="3">3</button>
<button class="calc-button operator" data-value="-">-</button>
</div>
<div class="text-center">
<button class="calc-button" data-value="0">0</button>
<button class="calc-button" data-value="C">C</button>
<button class="calc-button" data-value="=">=</button>
<button class="calc-button operator" data-value="+">+</button>
</div>
</div>
</body>
</html>
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