jQuery Radio Button Checked Value by Class

In this tutorial we will learn how to Get Checked Radio Button Value by Class in jQuery. jQuery val() method, class selector and :checked Selector can be used together to get the exact value of checked radio button.

jQuery val() Method

jQuery val() Method sets or returns the value of the input HTML elements.

In this example val() method is used to get value of checked radio button.

jQuery Class Selector

jQuery Class Selector is a selector which selects all HTML elements with same defined class.

In this example class selector is used with checked selector to select radio button by it's class.

:checked Selector

:checked Selector is used to target the checked radio button or checkboxes.

In this example :checked Selector is used to select the radio button which is checked.

HTML Code

HTML Code is given below, in this code we have two radio buttons with two labels and a button tag.

<!DOCTYPE html>
<html>
<head>
<title>Get Checked Radio Button Value by Class in jQuery</title>
<script src="https://code.jquery.com/jquery-3.3.1.min.js"></script>        
</head>    
<body> 
    
<label for="black">Black</label>
<input class='color' id="black" type="radio" value='black' name="color"> 
<label for="white">White</label>
<input class='color' id="white" type="radio" value='white' name="color">
<button id='btn'>Get Radio Value</button>    
    
<script src="script.js"></script>    
</body>
</html>

JQuery Code

JQuery Code is given below, the code is executed whenever button is clicked. This is done using jQuery click() method.

Then val() method is used to get the value of checked radio button.

$('.color:checked') is a combination of class selector and checked selector which will only target checked radio button with specific class.

<script>
$(document).ready(function(){
    $('#btn').click(function(){
        var value = $('.color:checked').val();
        alert(value);
    });
});
</script>

Demo

Video Tutorial

Watch video tutorial on How To Get Checked Radio Button Value by Class in jQuery.

Check radio button Dynamically with jQuery Change Background Color on hover with jQuery Hide and Show div using jQuery Get value of input element with jQuery Remove last child of parent element with jQuery Add li tag to the end of list jQuery Delete first row of Table with jQuery Delete last row of Table with jQuery Add first list item using jQuery jQuery Get id of Button jQuery toggle show hide on click Disable Button after Click with jQuery Get Button Text with jQuery jQuery Dynamic li Click Event How To Remove all Spaces in String with jQuery Get Selected file name in jQuery Remove Last Option of Select tag with jQuery Remove First Option from Select tag in jQuery jQuery Capitalize First Letter of String jQuery Check input value length jQuery Count all elements with same Class jQuery Get Checked Radio Button Value By Class jQuery Highlight Text in Div Get Checked Radio Button Value By Name in jQuery Get Checked Radio Button Value By id jQuery