jquery – 读取select2版本4下拉列表选择文本的正确方法是什么？

我试图找出在select2下拉项目中读取当前所选文本(不是值)的正确方法.我看不到这个列出 on the documentation.

我可以看到有一个新的DOM元素是具有“-container”后缀和“select2-”前缀的原始选择下拉列表的ID,所以不知道这是推荐读取还是select2有另一个api调用.

使用jquery读取当前所选文本的正确方法是什么？

解决方法

只需使用这个答案的细节：
How to get Selected Text from select2 when using <input>

像这样：

$(function() { 
    // Initialise
    $('.example-basic-single').select2();
    $('.example-basic-multiple').select2();

    // Retrieve default selected value
    var defaultSelection = $('.example-basic-single').select2('data');
    $("#selectedS").text(defaultSelection[0].text);

    // Single select capture
    $('.example-basic-single').on("select2:select",function (e) { 
       var data = $(this).select2('data');
       $("#selectedS").text(data[0].text);
    });

    $('.example-basic-multiple').on("select2:select",function (e) { 
       var data = $(this).select2('data');
       var selectedText = $.map(data,function(selected,i) {
                              return selected.text;
                          }).join();
       $("#selectedM").text(selectedText);
    });
    $('.example-basic-multiple').on("select2:unselect",i) {
                              return selected.text;
                          }).join();
       $("#selectedM").text(selectedText);
    });

});

.demo 
{ 
  margin: 10px;
}
.labelS,.labelM
{
  margin-top: 5px;
}
.selection
{ 
  margin-top: 5px;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.0/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/js/bootstrap.min.js"></script>
<script src="https://select2.github.io/dist/js/select2.full.js"></script>
<link href="https://select2.github.io/dist/css/select2.min.css" rel="stylesheet"/>
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css" rel="stylesheet"/>

<div class="container">
	<div class="row">
		<div class="col-xs-4">
			<div class="selection">Single select:</div>
			<select class="example-basic-single form-control">
				<option value="1">One</option>
				<option value="2">Two</option>  
				<option value="3">Three</option>
			</select>
			<div class="labelS">Selected:</div>
			<div id="selectedS"></div>
		</div>
		<div class="col-xs-4">  
			<div class="selection">Multiple Select:</div>
			<select class="example-basic-multiple form-control" multiple="multiple">
				<option value="1">One</option>
				<option value="2">Two</option>  
				<option value="3">Three</option>
				<option value="4">Four</option>
				<option value="5">Five</option>
			</select>
			<div class="labelM">Selected:</div>
			<div id="selectedM"></div>
		</div>
	</div>
</div>