In this tutorial, we will discuss the title of the JavaScript Program to Add Two Numbers
In this topic, we are going to learn how to write a program to add two numbers in the JavaScript programming language
Addition
Sum of two numbers
JavaScript Sum of two numbers
Program 1
Here, We use the plus(+) operator to find the sum of two numbers. The addition of two numbers 25 and 50 and the output is displayed here
const num_1=15;
const num_2=12;
//variable declaration
//Addition of two numbers
const sum=num_1+num_2;
//display the result o sum
console.log('The addition of '+num_1+' and '+num_2+' is: '+sum);
When the above code is executed, it produces the following result
The addition of 15 and 12 is: 27
JavaScript sum of two numbers using HTML
Program 2
Here, We use the plus(+) operator to find the sum of two numbers. The addition of two numbers 10 and 20 and the output is displayed on a web page using HTML
<html>
<head>
<title>Add two numbers in Java script</title>
<script>
var fNum=10;
var lNum=20;
var sum=fNum+lNum;
document.write("Sum: "+sum);
</script>
</head>
<body>
</body>
</html>
When the above code is executed, it produces the following result
Sum: 30
JavaScript Add two numbers using the form
Program 3
The program asks the user to enter two numbers using the form. then the result of the sum of two numbers is displayed when the user clicks the “add” button
<html>
<head>
<title>Add two numbers in Java script</title>
<script>
function add()//function definition
{
var fNum,sNum,sum;
fNum=parseInt(document.getElementById("first").value);
sNum=parseInt(document.getElementById("second").value);
sum=fNum+sNum;
document.getElementById("ans").value=sum;
}
</script>
</head>
<body>
<p>Enter the first value:<input id="first"></p>
<p>Enter the second value:<input id="second"></p>
<button >
When the above code is executed, it produces the following result
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