jQuery Traversing Descendants Contents Example

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<!DOCTYPE html>
<html lang="en">
	<head>
		<meta charset="UTF-8" />
		<meta name="viewport" content="width=device-width, initial-scale=1.0"/>
		<title>jQuery contents() – Show All Child Nodes</title>
		<script src="https://code.jquery.com/jquery-3.7.1.min.js"></script>
		<style>
			body {
				font-family: Arial, sans-serif;
				background-color: #f4f7fa;
				padding: 30px;
			}
			h2 {
				color: #2c3e50;
			}
			.description {
				color: #555;
				margin-bottom: 20px;
			}
			.container {
				border: 2px solid #16a085;
				padding: 20px;
				background-color: #e8f8f5;
				width: 400px;
				cursor: pointer;
				position: relative;
			}
			.box {
				margin: 8px 0;
				padding: 10px;
				background-color: #d1f2eb;
				border: 1px solid #1abc9c;
			}
			.highlight {
				background-color: #ffd54f !important;
				outline: 2px solid #fbc02d;
			}
			.info-box {
				margin-top: 20px;
				padding: 10px 15px;
				background-color: #fff;
				border-left: 4px solid #3498db;
				box-shadow: 0 0 5px rgba(0,0,0,0.1);
			}
			.node-label {
				margin-bottom: 6px;
				font-size: 14px;
				color: #444;
			}
			.node-label span {
				font-weight: bold;
				color: #2c3e50;
			}
		</style>
	</head>
	<body>

<h2>jQuery contents() – Show All Child Nodes</h2>
		<p class="description">
			Click the box below to highlight all <strong>element nodes</strong> inside, and list the <strong>text and comment nodes</strong> separately below.
		</p>

// Reset previous highlights and output
					$container.find('.highlight').removeClass('highlight');
					$info.empty();

$container.contents().each(function () {
						if (this.nodeType === 1) {
							// Element node (e.g., div)
							$(this).addClass('highlight');
						} else if (this.nodeType === 8) {
							// Comment node
							const commentText = this.nodeValue.trim();
							$info.append(`<div class="node-label"><span>Comment Node:</span> ${commentText}</div>`);
						} else if (this.nodeType === 3 && $.trim(this.nodeValue)) {
							// Text node (non-empty)
							const textPreview = this.nodeValue.trim().substring(0, 50);
							$info.append(`<div class="node-label"><span>Text Node:</span> "${textPreview}"</div>`);
						}
					});
				});
			});
		</script>

</body>
</html>

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