jquery - 使用 jQuery 在列表框中选择的值中显示工具提示

Question

当鼠标放在列表框值上时如何显示标题或工具提示，如下图所示？

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Answer 1

参见示例::

<!-- Include custom code to handle the tooltip -->
<script type="text/javascript">
  //After loading the page insert the title attribute.
  $(function(){
    $("select option").attr( "title", "" );
    $("select option").each(function(i){
      this.title = this.text;
    })
  });

  //Attach a tooltip to select elements
  $("select").tooltip({
   left: 25
  });
</script>

<!-- When moving the mouse over the below options -->
<select>
   <option>very long option text 1</option>
   <option>very long option text 2</option>
   <option>very long option text 3</option>
   <option>very long option text 4</option>
   <option>very long option text 5</option>
   <option>very long option text 6</option>
</select>