Using TypeScript for Building Polymorphic React Components/

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The ComponentProps Type

The ComponentProps Type

Leverage the internal React ComponentProps type to handle dynamic component attributes.

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In order to handle relevant attribute polymorphic props, what we need to do is to leverage the React.ComponentPropsWithoutRef type, as shown below.

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type PolymorphicTextProps<C extends React.ElementType> = {
  as?: C;
  children: React.ReactNode;
} & React.ComponentPropsWithoutRef<C>; 
export const PolymorphicText = <C extends React.ElementType>({
  as,
  children,
}: PolymorphicTextProps<C>) => {
  const Component = as || "span";
  return <Component>{children}</Component>;
};

Note that we’re introducing an intersection here. Essentially, we’re saying the type of PolymorphicTextProps is an object type containing as and children, and some other types ...