bug in add remove class with if else [closed]

Answer 1

DEMO

$('.lable_item').find(':checkbox').on('change',function () {
    var $label = $(this).closest('label');
    $label.toggleClass('label_act',this.checked)
});

Answer 2

In order for it not to run 2 times when you click you have to use the input instead of label

  $('.layout input').click(function () {
      $(this).parent().toggleClass('label_act')
  });

FIDDLE