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index (1).html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Simple Calculator</title>
<style>
body {
font-family: Arial, sans-serif;
text-align: center;
}
.calculator {
width: 300px;
margin: 0 auto;
border: 1px solid whitesmoke;
border-radius: 5px;
padding: 20px;
background-color: navajowhite;
}
.calculator input[type="button"] {
width: 60px;
height: 40px;
margin: 5px;
font-size: 18px;
cursor: pointer;
}
.calculator input[type="text"] {
width: 100%;
height: 40px;
margin-bottom: 10px;
font-size: 18px;
text-align: right;
padding-right: 10px;
color: blue;
}
</style>
</head>
<body>
<div class="calculator">
<input type="text" placeholder="Saqlain" id="display" readonly>
<br>
<input type="button" value="7" onclick="addToDisplay('7')">
<input type="button" value="8" onclick="addToDisplay('8')">
<input type="button" value="9" onclick="addToDisplay('9')">
<input type="button" value="/" onclick="addToDisplay('/')">
<br>
<input type="button" value="4" onclick="addToDisplay('4')">
<input type="button" value="5" onclick="addToDisplay('5')">
<input type="button" value="6" onclick="addToDisplay('6')">
<input type="button" value="×" onclick="addToDisplay('*')">
<br>
<input type="button" value="1" onclick="addToDisplay('1')">
<input type="button" value="2" onclick="addToDisplay('2')">
<input type="button" value="3" onclick="addToDisplay('3')">
<input type="button" value="-" onclick="addToDisplay('-')">
<br>
<input type="button" value="0" onclick="addToDisplay('0')">
<input type="button" value="." onclick="addToDisplay('.')">
<input type="button" value="=" onclick="calculate()">
<input type="button" value="+" onclick="addToDisplay('+')">
<br>
<input type="button" value="C" onclick="clearDisplay()">
</div>
<script>
function addToDisplay(value) {
document.getElementById('display').value += value;
}
function clearDisplay() {
document.getElementById('display').value = '';
}
function calculate() {
let expression = document.getElementById('display').value;
let result = eval(expression); // Using eval for simplicity (not recommended for production due to security risks)
document.getElementById('display').value = result;
}
</script>
</body>
</html>