我需要在几个条件下使用bootstrap popover显示一些内容.

如果属性的值大于定义的数量,则应显示弹出窗口.

但是在这里,在条件满足后,popover开始显示在每个属性中.

var number = 3;
$('a').hover(    
function() {  
if($(this).attr("value") > number) {
    $(document).ready(function(){
    $('[data-toggle="popover"]').popover();        
    });
}
});

  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
  <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
  <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"> 
  </script>

<br>
<br><a value = "1" data-toggle="popover" data-trigger="hover" data-content="Some content 1">Hover over me 1</a>
<br><a value = "2" data-toggle="popover" data-trigger="hover" data-content="Some content 2">Hover over me 2</a>
<br><a value = "4" data-toggle="popover" data-trigger="hover" data-content="Some content 4">Hover over me 4</a>
<br><a value = "5" data-toggle="popover" data-trigger="hover" data-content="Some content 5">Hover over me 5</a>
<br><a value = "6" data-toggle="popover" data-trigger="hover" data-content="Some content 6">Hover over me 6</a>

只有当值大于数字时,如何才能显示弹出窗口？

解决方法:

popover api允许可以在popover元素上调用的“show”参数.

它可能也很好,以确保你处理一个数字而不是一个字符串,因此parseInt你要检查的数字.

var number = 3;

$(document).ready(function(){
    $('a').hover(function() {  
      if(parseInt($(this).attr("value")) > number) {
        $(this).popover('show');
      }
    });
});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet"/>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>


<br><a value="1" data-toggle="popover" data-trigger="hover" data-content="Some content 1">Hover over me 1</a>
<br><a value="2" data-toggle="popover" data-trigger="hover" data-content="Some content 2">Hover over me 2</a>
<br><a value="4" data-toggle="popover" data-trigger="hover" data-content="Some content 4">Hover over me 4</a>
<br><a value="5" data-toggle="popover" data-trigger="hover" data-content="Some content 5">Hover over me 5</a>
<br><a value="6" data-toggle="popover" data-trigger="hover" data-content="Some content 6">Hover over me 6</a>