Today I Learned

A Hashrocket project

Create Dynamically Named Custom React Components

A React element is as simple as a function that returns some valid JSX. Any function will do.

const CustomComponent = ({ children }) => {
  return (
    <React.Fragment>{children}</React.Fragment>
  );
};

This function provides us with a React component that has a fixed name — CustomComponent. With the help of the displayName property, we can create dynamically named components.

const ComponentGenerator = ({ customName, children }) => {
  const CustomComponent = ({ children }) => {
    return (
      <React.Fragment>{children}</React.Fragment>
    );
  };
  CustomComponent.displayName = customName;

  return (
    <CustomComponent>{children}</CustomComponent>
  );
};

const App = () => {
  return (
    <ComponentGenerator customName="RandomComponentName">
      Hello!
    </ComponentGenerator>
  );
}

If we inspect the generated React tree, we will not see anything called <CustomComponent>, but instead we will see our <RandomComponentName> component.

Remember, React components need to have an uppercase name.