JavaScript Fundamentals Before Learning React/

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There is more JavaScript than React

There is more JavaScript than React

Final notes by the author to his readers!

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In conclusion, there is lots of JavaScript which can be harnessed in React. Whereas React has only a slim API surface area, developers have to get used to all the functionalities JavaScript has to offer. The saying is not without any reason: “being a React developer makes you a better JavaScript developer”. Let’s recap some of the learned aspects of JavaScript in React by refactoring a higher-order component.

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function withLoading(Component) {
  return class WithLoading extends {
    render() {
      const { isLoading, ...props } = this.props;
      if (isLoading) {
        return <p>Loading</p>;
      }
      return <Component { ...props } />;
    }
  }
  };
}

This higher-order component is only used for ...