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

8 votes363 views3 answers
Icon shwoing a box react native vector icons
Javascript React
0 vote326 views1 answer
Dropdown search field in react native
Javascript React
0 vote328 views1 answer
Svg as a component react
Javascript React
0 vote337 views1 answer
Sort by string react
Javascript React
0 vote331 views1 answer
React native camscanner application mobile code
Javascript React
0 vote336 views1 answer
Removing borderline of input in react
Javascript React
0 vote313 views2 answers
React native setstate object
Javascript React
8 votes336 views2 answers
React on link click scroll to top
Javascript React
6 votes359 views3 answers
Apply required attribute on input using ternary operator using react js
Javascript React
0 vote326 views2 answers
Remove state from location on page load in react router dom
Javascript React