html lang value

[cursive basalt]

Hi @small jetty. I'm kapa.ai, your friendly support bot. I will try to answer your question by searching through the knowledge base. :wave:

---

Yes, it is possible to render specific words based on the lang value in Next.js. You can achieve this by using the Internationalization (i18n) routing feature of Next.js.

When a user visits the application root (generally /), Next.js will try to automatically detect which locale the user prefers based on the Accept-Language header and the current domain. If a locale other than the default locale is detected, the user will be redirected to either the locale prefixed path or the domain with that locale specified as the default.

For example, if a user with the Accept-Language header fr;q=0.9 visits example.com, they will be redirected to example.fr since that domain handles the fr locale by default. When using Sub-path Routing, the user would be redirected to /fr.

You can also use the locale prop in the Link component to specify a different locale. The active locale is automatically prepended. locale allows for providing a different locale. When false href has to include the locale as the default behavior is disabled.

Here is an example:

import Link from 'next/link'
 
export default function Home() {
  return (
    <>
      {/* Default behavior: locale is prepended */}
      <Link href="/dashboard">Dashboard (with locale)</Link>
 
      {/* Disable locale prepending */}
      <Link href="/dashboard" locale={false}>
        Dashboard (without locale)
      </Link>
 
      {/* Specify a different locale */}
      <Link href="/dashboard" locale="fr">
        Dashboard (French)
      </Link>
    </>
  )
}

In your case, you can create a dictionary of words for each locale and use the lang value to decide which word to render.

For more information, you can refer to the Next.js documentation on Internationalization (https://nextjs.org/docs/app/building-your-application/routing/internationalization#static-generation) and Link Component (https://nextjs.org/docs/pages/api-reference/components/link#locale).

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[small jetty]

@cursive basalt is it possible to just watch for changes lang value instead?

[cursive basalt]

Let me check the knowledge base for you. One moment! :books:

---

Yes, it is possible to watch for changes in the lang value. You can use the useEffect hook in React to perform side effects in function components. In your case, the side effect would be to perform an action whenever the lang value changes.

Here is an example:

import { useEffect, useState } from 'react';

export default function Page({ params: { lang } }) {
  const [currentLang, setCurrentLang] = useState(lang);

  useEffect(() => {
    setCurrentLang(lang);
    // Perform your action here
  }, [lang]);

  return ... // your component
}

In this example, useEffect will run whenever the lang value changes. The lang value is passed as a dependency to useEffect, which means the effect will only run when lang changes.

Please note that this is a simplified example. Depending on your application's requirements, you might need to handle the lang value differently.

For more information, you can refer to the React documentation on the Effect Hook (https://reactjs.org/docs/hooks-effect.html).

Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:

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[small jetty]

@cursive basalt would a use context provider be suitable in this case?

[cursive basalt]

Let me check the knowledge base for you. One moment! :books:

---

Yes, using a Context Provider would be suitable in this case. You can create a LanguageContext and use a Context Provider to pass the current language (lang) to your components. Then, you can use the useContext hook in your components to access the current language.

Here is an example:

First, create a LanguageContext:

import { createContext } from 'react';

export const LanguageContext = createContext({});

Then, create a LanguageProvider that provides the current language to its children:

export function LanguageProvider({ children, lang }) {
  return (
    <LanguageContext.Provider value={lang}>
      {children}
    </LanguageContext.Provider>
  );
}

In your components, you can use the useContext hook to access the current language:

import { useContext } from 'react';
import { LanguageContext } from './LanguageContext';

export function MyComponent() {
  const lang = useContext(LanguageContext);

  // Now you can use `lang` in your component
}

Remember to wrap your components with the LanguageProvider and pass the current language as a prop:

<LanguageProvider lang="fr">
  <MyComponent />
</LanguageProvider>

This way, whenever the lang value changes, all components using the LanguageContext will re-render with the new language.

For more information, you can refer to the Next.js documentation on Context Providers (https://nextjs.org/docs/app/building-your-application/rendering/composition-patterns#using-context-providers) and the React documentation on Context (https://reactjs.org/docs/context.html).

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