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create counter custom hook #3

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create counter custom hook #3

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d848525
create counter custom hook
zainbinfurqan Oct 2, 2020
a8159bd
update code
zainbinfurqan Oct 2, 2020
df2afdb
update code with export default hook
zainbinfurqan Oct 2, 2020
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27 changes: 27 additions & 0 deletions hooks/useLocalStorageState.js
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Original file line number Diff line number Diff line change
@@ -0,0 +1,27 @@
import { useEffect, useState } from 'react';

export default function useLocalStorageState(key, defaultVa1ue) {
const [state, setState] = useState(() => {
let value;
try {
value = JSON.parse(window.localStorage.getItem(key) || String(defaultVa1ue))
}
catch (e) {
value = defaultVa1ue;
}
return value;
})
useEffect(
() => {
window.localStorage.setItem(key, state);
}, [state]);
return [state, setState];
}
// export default function Counter() {
// const [count, setcount] = useLocalStorageState("my-app-count", 0)
// return (
// <div>
// <button onClick={() => setcount(count + 1)} >{count}</button>
// </div>
// )
// }