Thu Feb 02 2023
Swap Variable Value
JavaScript1137 views
File Name: swap-value-in-javascript.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Swap Variable</title>
<script>
function swap() {
let num1 = document.getElementById('num1').value;
let num2 = document.getElementById('num2').value;
//using temporary variable
// let temp = num1;
// num1 = num2;
// num2 = temp;
//using destructuring assignment
[num2, num1] = [num1, num2];
document.getElementById('prev1').innerHTML = num1;
document.getElementById('prev2').innerHTML = num2;
}
</script>
</head>
<body>
<h1>Swap Value</h1>
<input type="text" placeholder="Number 1" id="num1" />
<input type="text" placeholder="Number 2" id="num2" />
<button type="button" onclick="swap()">Swap</button>
<h4>Number 1: <span id="prev1"></span></h4>
<h4>Number 2: <span id="prev2"></span></h4>
</body>
</html>Result Screenshot(s)
Author:Geekboots