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LEVEL 2 TASK 1
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LEVEL 2 TASK 1
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CALCULATOR
HTML :
index.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Simple Calculator</title>
<link rel="stylesheet" href="styles.css">
</head>
<body>
<div class="calculator">
<input type="text" id="display" disabled>
<div class="buttons">
<button onclick="clearDisplay()">C</button>
<button onclick="appendToDisplay('/')">/</button>
<button onclick="appendToDisplay('*')">*</button>
<button onclick="appendToDisplay('7')">7</button>
<button onclick="appendToDisplay('8')">8</button>
<button onclick="appendToDisplay('9')">9</button>
<button onclick="appendToDisplay('-')">-</button>
<button onclick="appendToDisplay('4')">4</button>
<button onclick="appendToDisplay('5')">5</button>
<button onclick="appendToDisplay('6')">6</button>
<button onclick="appendToDisplay('+')">+</button>
<button onclick="appendToDisplay('1')">1</button>
<button onclick="appendToDisplay('2')">2</button>
<button onclick="appendToDisplay('3')">3</button>
<button onclick="calculate()">=</button>
<button onclick="appendToDisplay('0')">0</button>
<button onclick="appendToDisplay('.')">.</button>
</div>
</div>
<script src="script.js"></script>
</body>
</html>
CSS :
style.css
body {
display: flex;
justify-content: center;
align-items: center;
height: 100vh;
margin: 0;
font-family: Arial, sans-serif;
}
.calculator {
width: 300px;
background-color: #f4f4f4;
border-radius: 5px;
padding: 10px;
box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}
#display {
width: calc(100% - 20px);
margin-bottom: 10px;
padding: 10px;
font-size: 20px;
border-radius: 3px;
border: 1px solid #ccc;
}
.buttons {
display: grid;
grid-template-columns: repeat(4, 1fr);
grid-gap: 5px;
}
button {
padding: 10px;
font-size: 18px;
border: none;
border-radius: 3px;
cursor: pointer;
background-color: #fff;
}
button:hover {
background-color: #ddd;
}
JAVASCRIPT :
script.js
let displayValue = '';
function appendToDisplay(value) {
displayValue += value;
document.getElementById('display').value = displayValue;
}
function clearDisplay() {
displayValue = '';
document.getElementById('display').value = displayValue;
}
function calculate() {
try {
const result = eval(displayValue);
displayValue = result.toString();
document.getElementById('display').value = displayValue;
} catch (error) {
displayValue = 'Error';
document.getElementById('display').value = displayValue;
}
}