React isValidElement comes out as false

Question

Here is a simple example:

const Foo = () => {
    return (
    
foo
  );
}

class Bar extends React.Component {
    render() {
    retur         


        

Answer 1

const Foo = () => 
foo
;

class Bar extends React.Component {
    render() {
       return (
          
bar
       )
    }
}

console.log(React.isValidElement());
console.log(React.isValidElement());