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| <body> | |
| <div class="ui-settings"> | |
| <div> | |
| <label for="dark">Enable dark mode:</label> | |
| <input type="checkbox" name="dark" id="dark-mode-checkbox" /> | |
| </div> | |
| </div> | |
| <div class="ui-elements"> | |
| <div class="w-20 h-20 bg-green-500 dark:bg-gray-500"></div> | |
| </div> | |
| <script type="module"> | |
| const DARK_MODE_CHECKBOX = document.getElementById( | |
| 'dark-mode-checkbox' | |
| ) as HTMLInputElement; | |
| // On page load | |
| if ( | |
| localStorage['dark'] === 'true' || | |
| (!('dark' in localStorage) && | |
| window.matchMedia('(prefers-color-scheme: dark)').matches) | |
| ) { | |
| document.documentElement.classList.add('dark'); | |
| DARK_MODE_CHECKBOX.checked = true; | |
| } else { | |
| document.documentElement.classList.remove('dark'); | |
| DARK_MODE_CHECKBOX.checked = false; | |
| } | |
| DARK_MODE_CHECKBOX.addEventListener('change', (e) => { | |
| const { name, checked } = e.target as HTMLInputElement; | |
| localStorage.setItem(name, checked.toString()); | |
| document.documentElement.classList.toggle('dark'); | |
| }); | |
| </script> | |
| </body> | |
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