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 vote226 views1 answer
CChartpie react
Javascript React
1 vote247 views1 answer
Dynamic forms in react
Javascript React
0 vote242 views1 answer
Changing map style react-leaflet
Javascript React
0 vote235 views2 answers
React js form radio input using hooks
Javascript React
0 vote243 views1 answer
How to print an array inside another array in react
Javascript React
3 votes243 views3 answers
How to remove global react-native-cli package
Javascript React
0 vote236 views1 answer
React-native-paper resize switch resize
Javascript React
4 votes243 views2 answers
Set selected option react
Javascript React
0 vote229 views1 answer
Import Bootstrap to React Redux CRUD App
Javascript React
133 votes341 views6 answers
Create react project
Javascript React