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Example Code Snippet "切换深色模式的完整示例"

<script src="https://fastcomments.com/js/embed-v2.min.js"></script> <button id="toggle-dark-mode">Toggle Dark Mode</button> <div id="fastcomments-widget"></div> <script> (function() { const button = document.getElementById('toggle-dark-mode'); const config = { tenantId: 'demo', hasDarkBackground: false }; const instance = window.FastCommentsUI(document.getElementById('fastcomments-widget'), config); button.addEventListener('click', function() { config.hasDarkBackground = !config.hasDarkBackground; if (config.hasDarkBackground) { document.body.classList.add('dark'); } else { document.body.classList.remove('dark'); } instance.update(config); }); })(); </script> <style> body.dark { background: #000; color: #fff; } </style>

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