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15 lines
641 B
JavaScript
15 lines
641 B
JavaScript
const valid = ['system', 'dark', 'light'];
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console.log(localStorage.theme);
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// Set the default to system, ignore & delete invalid values
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if (!('theme' in localStorage) || valid.indexOf(localStorage.theme) === -1)
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localStorage.theme = 'system';
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if (localStorage.theme === 'system') {
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const preferDark = window.matchMedia('(prefers-color-scheme: dark)').matches;
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document.documentElement.classList.add(preferDark ? 'dark' : 'light');
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} else if (localStorage.theme === 'dark') {
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document.documentElement.classList.add('dark')
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} else if (localStorage.theme === 'light') {
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document.documentElement.classList.remove('dark')
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} |