Question

How to make a radio button when a checkbox button is clicked? And also, how to erase the radio button, when the checkbox is unchecked?

if($("input[type=checkbox]").is(':checked')==true) {
  var val = this.value;
  var dataSplit = val.split("_");
  var result = '<div id="div'+dataSplit[0]+'"><input type="radio" class="choosen"
    name="rdb_'+val+'" value="'+val+'" id="'+dataSplit[0]+
    '" /><label class="'+dataSplit[0]+'">'+dataSplit[1]+'</label><br /></div>';
  $("#result").append(result);
}else if ($("input[type=checkbox]").is(':checked')==false){
  var val1 = this.value;
  var dataSplit1 = val1.split("_");
  $('#div'+dataSplit1[0]).parent.remove();
}

The code works when I check the checkbox, but it doesn’t work when I uncheck the checkbox. When I uncheck, the radio button is still added.

NB: Try to check 2/3 checkboxes, and uncheck them.

Answer 1

You should probably bind it to the change event of the checkbox, and just do:

$("input[type=checkbox]").on('change', function() {
    var val = this.value;
    var dataSplit = val.split("_");
    if (this.checked) {
        var result = '<div id="div'+dataSplit[0]+'"><input type="radio" class="choosen" name="rdb_'+val+'" value="'+val+'" id="'+dataSplit[0]+'" /><label class="'+dataSplit[0]+'">'+dataSplit[1]+'</label><br /></div>';
        $("#result").append(result);
    }else{
        $('#div'+dataSplit[0]).remove();
    }
});

FIDDLE