experiment.js

import React from 'react'
import { useGoogleOptimize } from '@heights/react-use-google-optimize'

const App = () => {
  const [isVariation] = useGoogleOptimize("OPTIMIZE_EXPERIMENT_ID")

  return (
    <>
      <h1>{ isVariation ? "This is a variant" : "This is control" }</h1>
    </>
  )
}