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How to change span value in jquery

青灯夜游
青灯夜游Original
2022-12-16 17:29:514027browse

Change steps: 1. Use the jquery selector to obtain the specified span element, the syntax "$("selector")"; 2. Use the text() or html() function to modify the content value of the specified element object , syntax "element object.text("new content")" or "element object.html("new content")".

How to change span value in jquery

The operating environment of this tutorial: windows7 system, jquery3.6.1 version, Dell G3 computer.

In jquery, you can use the jquery selector and text() (or html()) function to change the content value of span.

Implementation idea:

  • Get the specified span element object.

  • Modify the content value of the specified element object.

Implementation steps:

Step 1. Use jquery selector to obtain the specified span element

$("选择器")
  • Will return the jquery object containing the specified span element

Step 2. Use the text() or html() function to modify the content of the specified element object The value

  • text() can set the text content of the element, which can be changed by simply setting the text content to the new value.

  • html() can set or return content that contains text and HTML tags.

span元素对象.text("新内容")
span元素对象.html("新内容")

Example:

<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<script src="js/jquery-3.6.1.min.js"></script>
		<script>
			$(document).ready(function() {
				$("button").click(function() {
					$("#sp1").text("text()修改的新内容值")
					$("#sp2").html(&#39;html()修改的新内容值&#39;);
					$("#sp3").html(&#39;<b>html()修改的新内容值</b>&#39;);
				});
			});
		</script>
	</head>
	<body>
		<button>改变span元素的内容</button><br><br>
		<span id="sp1">span元素旧内容。</span><br><br>
		<span id="sp2">span元素旧内容。</span><br><br>
		<span id="sp3">span元素旧内容。</span><br><br>
	</body>
</html>

How to change span value in jquery

##Extended knowledge: Comparison between html() and text()

html() gets all the content inside the element, while text() gets only the text content.

<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8" />
		<script src="js/jquery-3.6.1.min.js"></script>
		<script>
			$(function () {
            var strHtml = $("p").html();
            var strText = $("p").text();
            $("#txt1").val(strHtml);
            $("#txt2").val(strText);
        })
    </script>
	</head>
	<body>
		<p><strong style="color:hotpink">PHP中文网</strong></p>
		html()是:<input id="txt1" type="text" /><br />
		text()是:<input id="txt2" type="text" />
	</body>
</html>

How to change span value in jquery

The difference between the two methods html() and text() can be clearly compared from the following table.

HTML codehtml()text()
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PHP Chinese website
PHP中文网
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##PHP中文网
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