/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 vote281 views1 answer
Auto refresh database in outsystems reactive
Javascript React
0 vote267 views1 answer
UseFetch custom hook for React
Javascript React
0 vote282 views1 answer
React js usehistory push and pass props
Javascript React
1 vote272 views1 answer
Type writer in react
Javascript React
0 vote283 views1 answer
How to update the react version in next js app
Javascript React
0 vote267 views1 answer
Add image to ag-grid with react
Javascript React
0 vote261 views1 answer
React native firebase login with facebook
Javascript React
0 vote302 views1 answer
React-hook-form image
Javascript React
1 vote257 views1 answer
Adding parameters to url react router
Javascript React
0 vote263 views3 answers
How to hide a screen from drawer in react navigation 5
Javascript React