if radio button checked jquery code example

Example 1: if radio checked jquery

$('#element').click(function() {
   if($('#radio_button').is(':checked')) { alert("it's checked"); }
});

Example 2: jQuery check a radio button

// jQuery version 1.6 or above use:  
$("#myRadioID").prop("checked", true);
 
//jQuery versions below 1.6 use:
$("#myRadioID").attr('checked', 'checked');

Example 3: 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 4: jquery radio button checked event

$('input:radio[name="postage"]').change(function(){

        if ($(this).val() == 'Yes') {
            //true
        }
        else {
            //false
        }
    });

Example 5: check radio button is checked jquery

$(document).ready(function(){
  $('#submit_button').click(function() {
    if (!$("input[name='name']:checked").val()) {
       alert('Nothing is checked!');
        return false;
    }
    else {
      alert('One of the radio buttons is checked!');
    }
  });
});