23 lines
738 B
JavaScript
23 lines
738 B
JavaScript
import { ref, watch } from 'vue'
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export function useLocalStorage(key, defaultValue, toolPrefix = '') {
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// Construct prefixed key: [toolPrefix-]key
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const prefixPart = toolPrefix ? `${toolPrefix}-` : ''
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const prefixedKey = `${prefixPart}${key}`
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// Initialize state from local storage or default value
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const storedValue = localStorage.getItem(prefixedKey)
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const data = ref(storedValue ? JSON.parse(storedValue) : defaultValue)
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// Watch for changes and update local storage
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watch(data, (newValue) => {
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if (newValue === null || newValue === undefined) {
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localStorage.removeItem(prefixedKey)
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} else {
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localStorage.setItem(prefixedKey, JSON.stringify(newValue))
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}
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}, { deep: true })
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return data
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}
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