UA-SOME_ANALYTICS_ID-1 = 先ほどのAnalytics ID (2)GAイベントを発火させる関数を作成する ・src/hooks/usePageView.ts ・src/lib/gtag.ts ・src/types/googleAnalytics/event.ts 作成 usePageView.ts import { useEffect } from 'react' import { useRouter } from 'next/router' import * as gtag from '../lib/gtag' export default function usePageView() { const router = useRouter() console.log(gtag.GA_ID) useEffect(() => { if (!gtag.existsGaI