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Get Checked Radiobutton Using JavaScript

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Get Checked Radiobutton Using JavaScript


In this blog I will explain how to create radio button in html and how to get checked radio button value by using java script.

First create simple radio button in HTML:

     <table cellspacing="10">


            <td valign="top">

                Select technology:



                <input type="radio" value="PHP" name="radiodbtn" />PHP

                <input type="radio" value="ASP.NET" name="radiodbtn" />ASP.NET

                <input type="radio" value="JSP" name="radiodbtn" />JSP

                <input type="radio" value="ASP.NET MVC" name="radiodbtn" />ASP.NET MVC




            <td colspan="2" align="center">

                <input type="button" value="Enter"/>





After creating radio buttons, create a function in java script that check whether a radio button is checked or not and if a radio button is checked, alert box display radio button value and also call that function on the click of button:

        function getSelectedRadioButton() {

            var ctr = 0;

            var radioLength = radiodbtn.length;

            for (var i = 0; i < radioLength; i++) {

                if (radiodbtn[i].checked) {






            if (ctr == radioLength)

                alert("None of the technologies have been selected:");



<input type="button" value="Enter" onclick="getSelectedRadioButton()" />


By reading this blog you can easily learn how to get selected radio button value through java script. Thank you for reading this blog.


By Samuel Fernandes on   one month ago

It was really helpful to read this post.

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