Write a program to find the reverse of a number entered by the user.
1. HTML
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Write a program to find reverse of a number entered by user.</title>
</head>
<body>
<div class="calculator">
<h4>Reverse Number</h4>
<input type="number" placeholder="Enter Number" id="inputNumber">
<p id="result"></p>
<div class="btn-group">
<button onclick="reverse()">Calculate</button>
</div>
</div>
</body>
</html>
2. CSS
<style>
body {
font-family: sans-serif;
text-align: center;
}
label {
font-weight: bold;
line-height: 2.7;
}
.calculator {
width: 20%;
margin: auto;
padding: 25px 10px;
border-radius: 5px;
background: #ffa500;
color: #ffffff;
}
input {
padding: 10px;
margin-bottom: 10px;
border-radius: 5px;
font-size: 15px;
font-weight: bold;
border-color: #00f;
}
button {
border: none;
padding: 10px 15px;
font-weight: bold;
font-size: 14px;
color: #ffffff;
background: #00f;
border-radius: 4px;
}
#result {
background: #514e4e99;
padding: 15px 0px;
margin: 20px 50px;
border-radius: 5px;
}
</style>
3. JS
<script>
const result = document.getElementById("result");
function reverse() {
var a, inputNumber, temp = 0;
var inputNumber = Number(document.getElementById("inputNumber").value);
while (inputNumber > 0) {
a = inputNumber % 10;
inputNumber = parseInt(inputNumber / 10);
temp = temp * 10 + a;
}
result.innerHTML = temp;
}
</script>
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