score:4
class Toggle extends Component {
componentDidMount() {
const storedValue = localStorage.getItem("my_value");
if (storedValue) {
this.setState({ value: storedValue });
}
}
handleChange = e => {
const value = e.target.value;
this.setState({ value });
localStorage.setItem("my_value", value);
}
render() {
return ...
}
}
Source: stackoverflow.com
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