Integrating React Hooks with Classic Class Components

While React hooks provide an alternative to class-based component design, it's possible to gradually adopt them by incorporating them into existing class components. This can be achieved using higher-order components (HOCs).

Consider the following class component:

class MyDiv extends React.component {
   constructor() {
      this.state = { sampleState: 'hello world' };
   }
   render() {
      return 
{this.state.sampleState}
;
   }
}

To add a hook to this component, create a HOC that wraps the component and provides the hook's value as a prop:

function withMyHook(Component) {
  return function WrappedComponent(props) {
    const myHookValue = useMyHook();
    return ;
  }
}

Although not using a hook directly from the class component, this method allows you to leverage the hook's functionality without code refactoring.

class MyComponent extends React.Component {
  render() {
    const myHookValue = this.props.myHookValue;
    return 
{myHookValue}
;
  }
}

export default withMyHook(MyComponent);

By utilizing this approach, you can progressively introduce hooks into your class-based components, allowing for a smooth transition towards a more modern React architecture.