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How to get tag content with jquery

藏色散人
藏色散人Original
2020-11-17 10:29:465113browse

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.

How to get tag content with jquery

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;
$(&#39;#标签id&#39;).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;
$(&#39;#标签id&#39;).html() 可以用来获取标签中间的html内容,比如<div id="div1"><span>123</span></div>可以用$(&#39;#div1&#39;).html()获取到<span>123</span>;
$(&#39;#标签id&#39;).attr(&#39;属性名&#39;)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(&#39;href&#39;)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=&#39;button&#39;]{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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