Created
August 2, 2021 20:32
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Working useLocalStorage hook for Next.js (no warnings in console)
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/* eslint-disable no-console */ | |
/* eslint-disable react-hooks/exhaustive-deps */ | |
import { useState, useEffect } from "react"; | |
export const useLocalStorage = <T>(key: string, initialValue: T) => { | |
const [storedValue, setStoredValue] = useState<T | undefined>(); | |
const setValue = (value: T) => { | |
window.localStorage.setItem(key, JSON.stringify(value)); | |
}; | |
useEffect(() => { | |
const value = window.localStorage.getItem(key); | |
if (value) { | |
try { | |
const parsed = JSON.parse(value) as T; | |
setStoredValue(parsed); | |
} catch (error) { | |
console.log(error); | |
setStoredValue(initialValue); | |
} | |
} else { | |
setStoredValue(initialValue); | |
} | |
}, []); | |
useEffect(() => { | |
if (storedValue) { | |
setValue(storedValue); | |
} | |
}, [storedValue]); | |
return [storedValue as T, setStoredValue] as const; | |
}; |
I'm getting this warning in chrome, when using the value for a text input value:
Warning: A component is changing an uncontrolled input to be controlled. This is likely caused by the value changing from undefined to a defined value, which should not happen. Decide between using a controlled or uncontrolled input element for the lifetime of the component. More info: https://reactjs.org/link/controlled-components
Any idea how to prevent this?
thanks bro
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Implimentation useLocalSTorage in NextJS