javascript - 错误 : Syntax error, 无法识别的表达式 : #192. 168.1.3:8985_solr"

Question

我收到 JavaScript 错误。

Error: Syntax error, unrecognized expression: #192.168.1.3:8985_solr

var replicasNodeName = "192.168.1.209:8983_solr";
$('"#' + replicasNodeName + '"').append('<a href="#"><span class="badge">5</span></a>');

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div class="card">
  <div class="card-body" id="192.168.1.209:8983_solr"> </div>
</div>

Answer 1

另一种方法是，使用 native document.getElementById() 方法，那么您不需要转义元字符

var replicasNodeName = "192.168.1.209:8983_solr";
$(document.getElementById(replicasNodeName)).append('<a href="#"><span class="badge">5</span></a>');

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div class="card">
  <div class="card-body" id="192.168.1.209:8983_solr"> </div>
</div>