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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 | 1x 1x 9x 9x 9x 3x 3x 3x 1x 1x 3x 9x 9x 9x 5x 5x 9x 9x 9x 2x 2x 2x 9x 9x 9x 9x 9x | import { ref, watch } from 'vue';
export function useLocalStorage<T>(key: string, defaultValue: T) {
const data = ref<T>(defaultValue);
const raw = localStorage.getItem(key);
if (raw) {
try {
data.value = JSON.parse(raw);
} catch (e) {
console.warn(`Cannot parse data from localStorage under key '${key}':`, e);
}
}
watch(
data,
(newVal) => {
localStorage.setItem(key, JSON.stringify(newVal));
},
{ deep: true }
);
function clear() {
localStorage.removeItem(key);
data.value = defaultValue;
}
return {
data,
clear,
};
}
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