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我想要打印任何有他们班级选择的项目的文本＆＃34;使用jQuery。我怎样才能做到这一点？

我需要用逗号分隔打印文本。

Answer 1

您可以使用jQuery.each()功能。

例如：

$( document ).ready(function() {
    var items = '';
    $( "li.selected" ).each(function( index ) {
        items+=$(this).text()+',';
    });
    $('#specialitycenters').after('<span>'+items.slice(0,-1)+'</span>');
});

示例here。希望它有所帮助。

已更新，以包含<span>代码。

Answer 2

您可以使用jQuery选择所有带有“selected”类的lis，然后使用jQuery each()方法循环遍历它们并将它们附加到您需要的任何位置。您可以使用text()方法从元素中获取文本，如循环中所示。

我们还检查我们是否在循环的最后一个索引处，以了解是否包含逗号和空格。

$(document).ready(function() {
  // get all of the li elements with the class selected and declare
  // our text variable
  var selected = $("li.selected");
  var text;
  
  // loop over our lis and do whatever you need with them
  $.each(selected, function(index) {

    // add the comma as long as it isn't the last one in the set
    if (index === (selected.length - 1)) {
      text = $(this).text();
    } else {
      text = $(this).text() + ", "; 
    }
    
    // append the result to wherever you need, in this
    // case it would just append it to the body
    $("body").append(text);
  });
});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>

<ul id="specialitycenters" class="specialitycenters" name="specialty-centers">
<li class="selected">ARCH At Risk Children Center</li>
<li class="selected">ARMS Primary care services for HIV AIDS</li>
<li class="selected">Adolescent - Young Adult Medicine</li>
<li>After the Cancer Experience ACE   Late Effects Clinic   Long Term Followup</li>
<li>Allergy</li>
<li>Allergy and Immunology</li>
<li>Analytical Imaging Modeling Center AIM</li>
<li>Anesthesiology</li>   
<li>Comprehensive  Stone Program</li>
</ul>

获取所选列表项＆＃39;文本使用类和打印跨度

HTML

2 个答案: