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demoJs.html
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demoJs.html
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<!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>javascript</title>
</head>
<body>
<h1>Hello</h1>
<input type="number" placeholder="number1">
<br><br>
<input type="number" placeholder="number2">
<br><br>
<button>Add</button>
<script>
document.getElementsByTagName("button")[0].addEventListener("click", function () {
// document.write("Go Back to Logout! <a href='demojs.html'>logout</a>");
var num1 = document.getElementsByTagName("input")[0].value
var num2 = document.getElementsByTagName("input")[1].value
var total = parseInt(num1)+ parseInt(num2);
alert("Addition : " + total);
})
</script>
</body>
</html>