jQuery Traversing Filtering End Example

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		<meta charset="UTF-8" />
		<meta name="viewport" content="width=device-width, initial-scale=1.0"/>
		<title>jQuery Traversal – end() vs. No end()</title>
		<script src="https://code.jquery.com/jquery-3.7.1.min.js"></script>
		<style>
			body { font-family: Arial; background: #f9f9f9; padding: 30px; }
			h2 { color: #2c3e50; }
			.btn { padding: 10px 20px; margin-right: 10px; margin-bottom: 20px; color: #fff; border: none; border-radius: 4px; cursor: pointer; }
			.btn-noend { background: #e74c3c; }
			.btn-end   { background: #27ae60; }
			.container { border: 2px solid #bdc3c7; padding: 15px; margin-bottom: 20px; background: #fff; }
			.item { display: inline-block; margin: 5px; padding: 10px 15px; background: #dfe6e9; border-radius: 4px; }
			.highlight-child  { background: #74b9ff; color: #fff; }
			.highlight-parent { border-color: #fab1a0; background: #ffeaa7; }
		</style>
	</head>
	<body>

<h2>jQuery Traversal – <code>end()</code> vs. No <code>end()</code></h2>
		<p>Use the buttons below to highlight <strong>items</strong> and their <strong>containers</strong>. The second button uses <code>end()</code> to “rewind” the chain.</p>
		<button class="btn btn-noend" id="noEnd">No <code>end()</code></button>
		<button class="btn btn-end"    id="withEnd">With <code>end()</code></button>

$('#noEnd').click(function(){
					reset();
					// highlights items correctly, but also (incorrectly) gives them the parent highlight
					$('.container')
						.find('.item')
						.addClass('highlight-child')
						.addClass('highlight-parent');
				});

$('#withEnd').click(function(){
					reset();
					// highlights items, then .end() rewinds back to containers before adding parent highlight
					$('.container')
						.find('.item').addClass('highlight-child')
						.end().addClass('highlight-parent');
				});
			});
		</script>

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