If you’re working with React and TypeScript, you may have come across the need to use children with a stateless functional component. In this article, we’ll explore how to achieve this and provide you with some code snippets to get started.

Using children prop

In React, the children prop allows you to pass components or elements as children to another component. In TypeScript, you can define the type of the children prop using the React.ReactNode type.

{`import React, { ReactNode } from 'react';

type MyComponentProps = {
  children: ReactNode;
};

const MyComponent: React.FC = ({ children }) => {
  return (
    

      {children}
    
  );
};

export default MyComponent;`}

In the code snippet above, we define a functional component called MyComponent that takes a prop called children of type ReactNode. We then render the children within a div element.

Using ReactNodeArray

If you need to pass multiple children to your stateless functional component, you can use the React.ReactNodeArray type.

{`import React, { ReactNodeArray } from 'react';

type MyComponentProps = {
  children: ReactNodeArray;
};

const MyComponent: React.FC = ({ children }) => {
  return (
    

      {children}
    
  );
};

export default MyComponent;`}

In the code snippet above, we define a functional component called MyComponent that takes a prop called children of type ReactNodeArray. This allows us to pass an array of children to the component.

Usage example

Now let’s see how we can use our MyComponent with children in TypeScript.

{`import React from 'react';
import MyComponent from './MyComponent';

const App: React.FC = () => {
  return (
    
      
Hello, world!
      This is a child component.
    
  );
};

export default App;`}

In the code snippet above, we import our MyComponent and use it as a parent component. We pass a h1 element and a p element as children to our MyComponent.

Conclusion

Using children with React Stateless Functional Components in TypeScript is straightforward. By defining the type of the children prop as ReactNode or ReactNodeArray, you can pass components or elements as children to your stateless functional components.