In this article, I will show you how to write a JavaScript program to add the sum of two given numbers by user.

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Program Listing

<doctype html>
<html>
<head>
	<style>
		body {
			font-family: arial;
		}
   </style>		
<script>
function add(){
var a,b,c;
a=Number(document.getElementById("first").value);
b=Number(document.getElementById("second").value);
c= a + b;
document.getElementById("answer").value= c;
}
</script>
</head>
<body>
<h3> Addition of Two Numbers in JavaScript </h3><br>
Give the First number : <input id="first"><br>
Give the Second number: <input id="second"><br><br>
The result <input id="answer"><br><br>
<button onclick="add()">Add</button>
</body>
</html>

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