Jquery method of obtaining tag content: 1. Use the "$('#id').val()" method to obtain the value of the tag; 2. Use "$('#id').text( )" method to get the text in the middle of the tag; 3. Get the html content in the tag through the "$('#id').html()" method.
Recommended: "javascript basic tutorial"
Use jquery to get the value of the tag or the content of the element
$('#标签id').val() 可以用来获取标签的value值,比如 input 标签的value值可以用它获取; $('#标签id').text()可以用来获取标签中间的文本,比如 <span>值1</span>就可以用它获取到值1; $('#标签id').html() 可以用来获取标签中间的html内容,比如<div id="div1"><span>123</span></div>可以用$('#div1').html()获取到<span>123</span>; $('#标签id').attr('属性名')可以用它来获取标签的指定属性的值,比如<a href="xxx.aspx">xxx</a>就可以用.attr('href')获取到xxx.aspx。 jquery提供了三个获得内容的方法: text()、html() 以及 val(),其中前两个可用于解决本问题: $("label#userid").text(); // 首选,获取label的文本 $("label#userid").html(); // 也可以实现,获取label标签内的所有html标记,一般情况改下label标签内就是文本,所以等效上面的方法
The following is an example demonstration: use the above two methods to obtain the content of the label tag, pay attention to the difference in the final results
Create Html elements
<div class="box"> <span>点击按钮获取label中内容:</span><br> <div class="content"> <label id="userid">输入用户名</label><input type="text"> </div> <input type="button" value="获取label中的内容"> </div>
Settings css style
div.box{width:300px;padding:20px;margin:20px;border:4px dashed #ccc;} div.box span{color:#999;font-style:italic;} div.content{width:250px;margin:10px 0;padding:20px;border:2px solid #ff6666;} h3{display:inline-block;} input[type='button']{height:30px;margin:10px;padding:5px 10px;}
Write jquery code
$(function(){ $("input:button.btn1").click(function() { alert($("label#userid").text()); }); $("input:button.btn2").click(function() { alert($("label#userid").html()); }); })
Observe the effect
Use the text() method to get the content in the tag
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