js add two numbers code example
Example 1: how to add two numbers in javascript
let a = 4;
let b = 5;
document.write(a + b);
Example 2: javascript function to add two numbers
<html>
<head>
<title>Add two integer numbers using JavaScript.</title>
<script type="text/javascript">
function addTwoNumbers(textBox1, textBox2){
var x=document.getElementById(textBox1).value;
var y=document.getElementById(textBox2).value;
var sum=0;
sum=Number(x)+Number(y);
alert("SUM is: " + sum);
}
</script>
</head>
<body>
<h1>Add two integer numbers using JavaScript.</h1>
<b>Enter first Number: </b><br>
<input type="text" id="textIn1"/><br>
<b>Enter second Number: </b><br>
<input type="text" id="textIn2"/><br><br>
<input type="button" id="btnSum" value="Calculate SUM" onClick="addTwoNumbers('textIn1','textIn2')"/>
</body>
</html>
Example 3: add two numbers javascript
var x = 2 + 3;
//x = 5
Example 4: to add 2 numbers using function in javascript
// Prints the sum of 2 float numbers
function addition(number_1, number_2)
{
int sum = number_1 + number_2
document.write(sum)
}
var number_1 = parseFloat(prompt("First Number"));
var number_2 = parseFloat(prompt("Second Number"));
addition(number_1, number_2);