What is the method of using React’s Higher Order Components?

1 year ago
Sophia Anderson
1 minute

React HOC (Higher Order Component) is a way of using higher-order components to reuse logic in components. HOC is a function that takes a component as a parameter and returns a new enhanced component.

Here is how to use:

  1. Create a higher order component (HOC) function that takes a component as a parameter.
const hoc = (WrappedComponent) => {
  // 在此处可以定义一些逻辑和状态
  // 返回一个新的增强组件
  return class EnhancedComponent extends React.Component {
    render() {
      // 可以在此处进行一些逻辑处理
      // 通过 props 将原始组件和 HOC 组件连接起来
      return <WrappedComponent {...this.props} />
    }
  }
};
  1. Wrap the component with the HOC function and export the enhanced component.
const EnhancedComponent = hoc(OriginalComponent);

export default EnhancedComponent;
  1. Use enhanced components in other components.
import EnhancedComponent from './EnhancedComponent';

const App = () => {
  return (
    <div>
      <EnhancedComponent />
    </div>
  );
};

Using Higher Order Components (HOC), you can apply common logic and state to multiple components, making your code more reusable and maintainable. Additionally, HOC can pass extra functionality to the original component through props, enhancing its capabilities.

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