React localstorage

// setter
localStorage.setItem('myData', data);
// getter
localStorage.getItem('myData');
// remove
localStorage.removeItem('myData');
// remove all
localStorage.clear();

Source: robinwieruch.de

React localStorage

const useLocalStorage = (keyName, defaultValue) => {
  const [storedValue, setStoredValue] = React.useState(() => {
    try {
      const value = window.localStorage.getItem(keyName);

      if (value) {
        return JSON.parse(value);
      } else {
        window.localStorage.setItem(keyName, JSON.stringify(defaultValue));
        return defaultValue;
      }
    } catch (err) {
      return defaultValue;
    }
  });

  const setValue = newValue => {
    try {
      window.localStorage.setItem(keyName, JSON.stringify(newValue));
    } catch (err) {}
    setStoredValue(newValue);
  };

  return [storedValue, setValue];
};

Example
const MyApp = () => {
  const [name, setName] = useLocalStorage('name', 'John');

  return <input value={name} onChange={e => setName(e.target.value)} />;
};

ReactDOM.render(<MyApp />, document.getElementById('root'));

Source: 30secondsofcode.org

Similar codes

0 vote244 views1 answer
React-timeago npm
Javascript React
1 vote258 views1 answer
React native basic template
Javascript React
0 vote252 views1 answer
How to filter data from mongodb date in reactjs
Javascript React
3 votes252 views2 answers
React native animated sticker
Javascript React
2 votes233 views1 answer
View background image in react native
Javascript React
0 vote263 views1 answer
React native navigate two screens back
Javascript React
4 votes256 views1 answer
Reactjs onclick open new page
Javascript React
-1 vote238 views2 answers
E.target.text react
Javascript React
0 vote330 views1 answer
Attempted import error: 'Map' is not exported from 'react-leaflet' (imported as 'LeafletMap').
Javascript React
4 votes227 views1 answer
Navigating programatically react
Javascript React