Next.js

pages/_app.tsx

import 'styles/globals.css'
import type { AppProps } from 'next/app'
 
interface Props {}
interface State {}
 
function MyApp({ Component, pageProps }: AppProps<Props>) {
  return <Component {...pageProps} />
}
 
export default MyApp

pages/_document.tsx

import Document, { Html, Head, Main, NextScript } from 'next/document'
import type { DocumentContext } from 'next/document'
import { Children } from 'react'
 
export default class MyDocument extends Document {
  static async getInitialProps(ctx: DocumentContext) {
    const initialProps = await Document.getInitialProps(ctx)
    return {
      ...initialProps,
      styles: Children.toArray(initialProps.styles)
    }
  }
  render() {
    return (
      <Html lang="ko" dir="ltr">
        <Head>
          <meta charSet="utf-8" />
          <meta name="theme-color" content="#000" />
          <meta name="robots" content="index, follow" />
          <link
            rel="apple-touch-icon"
            sizes="180x180"
            href="favicons/apple-icon-180x180.png"
          />
          <link
            rel="icon"
            type="image/png"
            sizes="32x32"
            href="favicons/favicon-32x32.png"
          />
          <link
            rel="icon"
            type="image/png"
            sizes="16x16"
            href="favicons/favicon-16x16.png"
          />
          <link rel="manifest" href="/manifest.json" />
          <link
            rel="stylesheet"
            type="text/css"
            href="https://cdn.jsdelivr.net/gh/orioncactus/pretendard/dist/web/static/pretendard.css"
          />
          <meta name="msapplication-TileColor" content="#000" />
        </Head>
        <body>
          <Main />
          <NextScript />
        </body>
      </Html>
    )
  }
}

pages/_error.tsx

import type { NextPage } from 'next'
import type { ErrorProps } from 'next/error'
import NextErrorComponent from 'next/error'
 
const CustomErrorComponent: NextPage<ErrorProps> = (props) => {
  return <NextErrorComponent statusCode={props.statusCode} />
}
 
CustomErrorComponent.getInitialProps = async (contextData) => {
  return NextErrorComponent.getInitialProps(contextData)
}
 
export default CustomErrorComponent

Git Alias Prettier