how to find radio button is checked in jquery code example

Example 1: jquery get value of radio input

$('input[name="name_of_your_radiobutton"]:checked').val();

Example 2: radio button checked event jquery

$('#radio-button-id').click(function() {
  if($('#radio-button-id').is(':checked')) 
  { 
    //input where you put a value
    $('#program').val("radio-button-text");
  }                      
});

Example 3: jquery select specific radio button by value

$("input[name=mygroup][value=" + value + "]").prop('checked', true);

Example 4: How can I know which radio button is selected via jQuery

if ($('input[name="radioName"]:checked', '#myForm').length) {
	//Yes, it's checked!
}