how to add two numbers in javascript using textbox?

Today, We want to share with you how to add two numbers in javascript using textbox.In this post we will show you addition of two numbers in javascript using html, hear for write a javascript program to calculate multiplication and division of two numbers (input from user) we will give you demo and example for implement.In this post, we will learn about Shell Script To Add Two Numbers Using Ommand Line Arguments with an example.

Add two numbers in JavaScript

Example 1:

Enter First Number :
<input type="text" id="Text1" name="TextBox1">
<br>Enter Second Number :
<input type="text" id="Text2" name="TextBox2">
<br>Result :
<input type="text" id="txtresult" name="TextBox3">
<input type="button" name="clickbtn" value="Display Result" onclick="add_number()">

javaScript Code

function add_number() {
    var first_number = parseInt(document.getElementById("Text1").value);
    var second_number = parseInt(document.getElementById("Text2").value);
    var result = first_number + second_number;

    document.getElementById("txtresult").value = result;

I hope you get an idea about add two textbox values and display the sum in a third textbox automatically in javascript.
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