0

当Select选项是空白占位符时,如何找到它,以便我可以执行适当的jQuery / javaScript?

这是我的标记(haml):

= form_tag(compare_path, method: 'get', remote: true, id: 'compare_form') do
          = select_tag "votus_friend_id", options_from_collection_for_select(@votus_friends, :id, :full_name, @comparison.votus_friend.id), :include_blank => true, :class => "compare-search", :style => "width:100%; margin-left: 3px;"

这是我的 JS。我知道这里很远。为了运行条件,我似乎无法找到从 select2 返回的空白占位符的确切值:

$('.compare-search').on('change', function() {

  console.log('thisss', $('<select/>')  );

  if ($('.compare-search').val() === '') {
    $('.vScoreExplain').show();
    $('.stats').hide();
  }
  else {
    $('.vScoreExplain').hide();
    $('.stats').show();
  }
});
4

1 回答 1

0

你可以试试这个:

$('.compare-search').on('change', function() {

  if ($(this).val().length) {
    $('.vScoreExplain').hide();
    $('.stats').show();
  }
  else {
    $('.vScoreExplain').show();
    $('.stats').hide();
  }
});
于 2015-05-24T17:30:10.113 回答