当select选项是空白占位符时,如何找到它,以便我可以执行相应的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。我知道它离开这里了。我似乎无法找到从select2返回的空白占位符的确切值,以便运行条件:
$('.compare-search').on('change', function() {
console.log('thisss', $('<select/>') );
if ($('.compare-search').val() === '') {
$('.vScoreExplain').show();
$('.stats').hide();
}
else {
$('.vScoreExplain').hide();
$('.stats').show();
}
});
答案 0 :(得分: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();
}
});