@newrelic/gatsby-theme-newrelic/src/hooks/useHasMounted.js

[](https://opensource.newrelic.com/oss-category/#community-project)

import { useState, useEffect } from 'react';

const useHasMounted = () => {
  const [hasMounted, setHasMounted] = useState(false);
  useEffect(() => {
    setHasMounted(true);
  }, []);
  return hasMounted;
};

export default useHasMounted;