How To Add Multiple Language Support In ReactJS

• i18next

  60 7,399 9.2 JavaScript

  i18next: learn once - translate everywhere

  

Now inside tag add onChange method, this is where we get values from options provided and pass it to i18n to change language i18n.changeLanguage(e.target.value)}> Choose language Uzbek Russian English Enter fullscreen mode Exit fullscreen mode Final App.js import logo from './logo.svg'; import './App.css'; import { useTranslation } from 'react-i18next'; function App() { const { t, i18n } = useTranslation() return (



Edit src/App.js and save to reload.

i18n.changeLanguage(e.target.value)}> Choose language Uzbek Russian English {t('welcome')}
{t('goodbye')}

); } export default App; Enter fullscreen mode Exit fullscreen mode Result Translation optimization Step 1: Now, did you noticed our translations are located inside i18n.js file. We haven't yet started splitting translations into multiple files (which is highly recommended for larger projects) but we already see that adding more languages would result in bundling unneeded translations into the application. In order to separate our translation we will use package namely i18next-http-backend, which helps us to load our translations asynchronously. Install i18next-http-backend by running this code on terminal npm install i18next-http-backend Enter fullscreen mode Exit fullscreen mode Now we need to wire up i18next-http-backend into our i18n.js file import i18n from "i18next"; import { initReactI18next } from "react-i18next"; import backend from "i18next-http-backend"; // <--- import here i18n .use(initReactI18next) // passes i18n down to react-i18next .use(backend) // <--- wire up here .init({ // the translations // (tip move them in a JSON file and import them, // or even better, manage them via a UI: https://react.i18next.com/guides/multiple-translation-files#manage-your-translations-with-a-management-gui) resources: { uz: { translation: { welcome: "Xush kelibsiz", goodbye: "Xayr" } }, ru: { translation: { welcome: "Добро пожаловать", goodbye: "До свидания" } }, en: { translation: { welcome: "Welcome", goodbye: "Goodbye" } } }, lng: "en", // if you're using a language detector, do not define the lng option fallbackLng: "en", interpolation: { escapeValue: false // react already safes from xss => https://www.i18next.com/translation-function/interpolation#unescape } }); Enter fullscreen mode Exit fullscreen mode Once we connected i18next-http-backend, by default it will load translation from this path '../public/locales/{lang}/translation.json' Enter fullscreen mode Exit fullscreen mode This path considered to be the default for the i18next-http-backend to load from. Step 2: We need to create this path locales/{lang}/translation.json inside public folder. Now we need to remove this part of code from i18n.js file And add our translations inside translation.json file for each language. UZ RU EN Now check result on browser Final Result Link to full source of tutorial here Reference list i18next React.i18next Locize Geeksforgeeks Legacy-v9

• react-native

  524 115,579 10.0 C++

  A framework for building native applications using React

  

react-i18next is a powerful internationalization framework for React / React Native which is based on i18next.

• SurveyJS

  surveyjs.io sponsored

  Open-Source JSON Form Builder to Create Dynamic Forms Right in Your App. With SurveyJS form UI libraries, you can build and style forms in a fully-integrated drag & drop form builder, render them in your JS app, and store form submission data in any backend, inc. PHP, ASP.NET Core, and Node.js.

  

• React

  1,691 221,535 9.8 JavaScript

  The library for web and native user interfaces.

  

react-i18next is a powerful internationalization framework for React / React Native which is based on i18next.

• react-i18next

  70 8,934 8.9 JavaScript

  Internationalization for react done right. Using the i18next i18n ecosystem.

  

Now inside tag add onChange method, this is where we get values from options provided and pass it to i18n to change language i18n.changeLanguage(e.target.value)}> Choose language Uzbek Russian English Enter fullscreen mode Exit fullscreen mode Final App.js import logo from './logo.svg'; import './App.css'; import { useTranslation } from 'react-i18next'; function App() { const { t, i18n } = useTranslation() return (



Edit src/App.js and save to reload.

i18n.changeLanguage(e.target.value)}> Choose language Uzbek Russian English {t('welcome')}
{t('goodbye')}

); } export default App; Enter fullscreen mode Exit fullscreen mode Result Translation optimization Step 1: Now, did you noticed our translations are located inside i18n.js file. We haven't yet started splitting translations into multiple files (which is highly recommended for larger projects) but we already see that adding more languages would result in bundling unneeded translations into the application. In order to separate our translation we will use package namely i18next-http-backend, which helps us to load our translations asynchronously. Install i18next-http-backend by running this code on terminal npm install i18next-http-backend Enter fullscreen mode Exit fullscreen mode Now we need to wire up i18next-http-backend into our i18n.js file import i18n from "i18next"; import { initReactI18next } from "react-i18next"; import backend from "i18next-http-backend"; // <--- import here i18n .use(initReactI18next) // passes i18n down to react-i18next .use(backend) // <--- wire up here .init({ // the translations // (tip move them in a JSON file and import them, // or even better, manage them via a UI: https://react.i18next.com/guides/multiple-translation-files#manage-your-translations-with-a-management-gui) resources: { uz: { translation: { welcome: "Xush kelibsiz", goodbye: "Xayr" } }, ru: { translation: { welcome: "Добро пожаловать", goodbye: "До свидания" } }, en: { translation: { welcome: "Welcome", goodbye: "Goodbye" } } }, lng: "en", // if you're using a language detector, do not define the lng option fallbackLng: "en", interpolation: { escapeValue: false // react already safes from xss => https://www.i18next.com/translation-function/interpolation#unescape } }); Enter fullscreen mode Exit fullscreen mode Once we connected i18next-http-backend, by default it will load translation from this path '../public/locales/{lang}/translation.json' Enter fullscreen mode Exit fullscreen mode This path considered to be the default for the i18next-http-backend to load from. Step 2: We need to create this path locales/{lang}/translation.json inside public folder. Now we need to remove this part of code from i18n.js file And add our translations inside translation.json file for each language. UZ RU EN Now check result on browser Final Result Link to full source of tutorial here Reference list i18next React.i18next Locize Geeksforgeeks Legacy-v9

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