darkLightBackgroundJQuery/darkLight.html at master · idev-emrul/darkLightBackgroundJQuery · GitHub

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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>DarkLight</title>
	<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>
	<script type="text/javascript"
		src="https://cdnjs.cloudflare.com/ajax/libs/jquery-cookie/1.4.1/jquery.cookie.min.js"></script>
	<style>
		.dark {
			background-color: #444;
			color: #fff;
		}

		.light {
			background-color: #fff;
			color: #444;
		}
	</style>
</head>

<body class="">
	<h1>Dark Light Toggling</h1>

	<button id="c">click to toggle background</button>

	<script>
		$(document).ready(function () {
			$('#c').click(function () {
				let bgColor = $.cookie("BgColor");
				if (bgColor == 'dark') {
					$.cookie("BgColor", "light");
					$('body').removeClass('dark');
					$('body').addClass($.cookie("BgColor"));
				} else {
					$.cookie("BgColor", "dark");
					$('body').removeClass('light');
					$('body').addClass($.cookie("BgColor"));
				}
			});
			$('body').addClass($.cookie("BgColor"));
		});
	</script>
</body>

</html>