تطبيق مخصص

import type { AppProps } from 'next/app'

export default function MyApp({ Component, pageProps }: AppProps) {
  return <Component {...pageProps} />
}

export default function MyApp({ Component, pageProps }) {
  return <Component {...pageProps} />
}

import App, { AppContext, AppInitialProps, AppProps } from 'next/app'

type AppOwnProps = { example: string }

export default function MyApp({
  Component,
  pageProps,
  example,
}: AppProps & AppOwnProps) {
  return (
    <>
      <p>Data: {example}</p>
      <Component {...pageProps} />
    </>
  )
}

MyApp.getInitialProps = async (
  context: AppContext
): Promise<AppOwnProps & AppInitialProps> => {
  const ctx = await App.getInitialProps(context)

  return { ...ctx, example: 'data' }
}

import App from 'next/app'

export default function MyApp({ Component, pageProps, example }) {
  return (
    <>
      <p>Data: {example}</p>
      <Component {...pageProps} />
    </>
  )
}

MyApp.getInitialProps = async (context) => {
  const ctx = await App.getInitialProps(context)

  return { ...ctx, example: 'data' }
}