what is the use of react fragment code example

Example 1: react fragment

render() {
  return (
    <React.Fragment>
      <ChildA />
      <ChildB />
      <ChildC />
    </React.Fragment>
  );
}

Example 2: react fragment

render() {
  return (
    <>
      <div><div/>
      <div><div/>
      <div><div/>
    </>
  );
}