/Javascript/React/React higher order components

React higher order components

// This function takes a component...
function withSubscription(WrappedComponent, selectData) {
  // ...and returns another component...
  return class extends React.Component {
    constructor(props) {
      super(props);
      this.handleChange = this.handleChange.bind(this);
      this.state = {
        data: selectData(DataSource, props)
      };
    }

    componentDidMount() {
      // ... that takes care of the subscription...
      DataSource.addChangeListener(this.handleChange);
    }

    componentWillUnmount() {
      DataSource.removeChangeListener(this.handleChange);
    }

    handleChange() {
      this.setState({
        data: selectData(DataSource, this.props)
      });
    }

    render() {
      // ... and renders the wrapped component with the fresh data!
      // Notice that we pass through any additional props
      return <WrappedComponent data={this.state.data} {...this.props} />;
    }
  };
}

Similar codes

0 vote149 views1 answer
Spring reactive web client throw exception test
Javascript React
0 vote150 views1 answer
Box-shadow: 0px 4px 8px rgba(164, 188, 223, 0.15); to react native
Javascript React
0 vote166 views1 answer
Storybook react router
Javascript React
4 votes104 views1 answer
React router dom v6 goback
Javascript React
18 votes149 views3 answers
How To Hide React Navigation Header in React Native
Javascript React
0 vote142 views1 answer
Date picker type react
Javascript React
0 vote162 views1 answer
What is react mounting
Javascript React
1 vote155 views1 answer
Inject Javascript Function not working in Android React Native WebView but work fine in iOS React Native
Javascript React
0 vote150 views1 answer
React-native-dropdown-picker for form react native
Javascript React
0 vote148 views2 answers
Why we need react js
Javascript React