How to modify the content of a node in jquery-Front-end Q&A-php.cn

How to modify the content of a node in jquery

青灯夜游

Release： 2022-03-22 19:42:59

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Jquery method to modify node content: 1. Use text() to modify the text content of the node, the syntax is "node object.text("new text content")"; 2. Use html() to modify the node content. Directly rewrite the content of the node, the syntax is "node object.html("new node content")".

How to modify the content of a node in jquery

The operating environment of this tutorial: windows7 system, jquery1.10.2 version, Dell G3 computer.

jquery modifies the content of the node

Method 1: Use text()

text( ) method sets or returns the text content of the selected element.

When this method is used to return content, the text content of all matching elements is returned (HTML tags will be removed).
When this method is used to set content, the content of all matching elements is rewritten.

Example:

<!DOCTYPE html>
<html>

	<head>
		<meta charset="UTF-8">
		<script src="js/jquery-1.10.2.min.js"></script>
		<script>
			$(document).ready(function() {
				$("button").click(function() {
					$("p").text("Hello world!");
				});
			});
		</script>
	</head>
	<body>

		<button>修改所有p元素的文本内容</button>
		<p>这是一个段落。</p>
		<p>这是另一个段落。</p>

	</body>
</html>

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How to modify the content of a node in jquery

Method 2: Using html()

html () method sets or returns the content of the selected element (innerHTML).

When this method is used to return content, the content of the first matching element is returned.
When this method is used to set content, the content of all matching elements is rewritten.

<!DOCTYPE html>
<html>

	<head>
		<meta charset="UTF-8">
		<script src="js/jquery-1.10.2.min.js"></script>
		<script>
			$(document).ready(function() {
				$("button").click(function() {
					$("p").html("Hello <b>world!</b>");
				});
			});
		</script>
	</head>
	<body>

		<button>修改所有P元素的内容</button>
		<p>这是一个段落。</p>
		<p>这是另一个段落。</p>

	</body>
</html>

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How to modify the content of a node in jquery

Extended knowledge: Comparison of html() and text()

<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8" />
		<script src="js/jquery-1.10.2.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>

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How to modify the content of a node in jquery

As can be seen from this example, html() obtains all the content inside the element, while text() obtains only the text content.

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

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[Recommended learning:

HTML code	html()	text()
	PHP Chinese website	PHP Chinese website
##PHP中文网	PHP中文网
	(empty string)

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