首次嘗試 Next.js，利用 useEffect、getServerSideProps、getStaticProps 更具體觀察 CSR、SSR、SSG 在網頁上的呈現差異。
- Node.js 至少要 v10.13
- 首次啟動需
npm i，安裝相關 package
npm run dev=>next dev: starts the application in development mode with hot-code reloading, error reporting, and more. The application will start at http://localhost:3000 by default.npm run build=>next build: creates an optimized production build of your application. The output displays information about each route.npm run start=>next start: starts the application in production mode. The application should be compiled withnext buildfirst. The application will start at http://localhost:3000 by default.
p.s. 如果採用 npm run dev 是無法觀察出 SSR / SSG 的差異，需要使用 npm run start 才能觀察出差異。npm run start 前，記得要先 npm run build。
