This example demonstrates how to set fallback language. Language to lookup key if not found on set language, can be a string (en), an array (['fe', 'en']) or object defining fallbacks and a default ( { 'de-CH': ['fr', 'it'], 'zh-HANT': ['zh-HANS', 'en'], 'default': ['en'] } ). In this example Arabic, Dutch or Italian language files don't exist in /data/locales/ folder. When one of these languages is selected, English language specified in fallbackLng option will be loaded.

                        
                            <div aria-labelledby="dropdown-flag" class="dropdown-menu dropdown-menu-right">
                                <a href="#" class="dropdown-item">
                                    <i class="flag-icon flag-icon-gb"></i> English
                                </a>
                                <a href="#" class="dropdown-item">
                                    <i class="flag-icon flag-icon-ar"></i> Arabic
                                </a>
                                <a href="#" class="dropdown-item">
                                    <i class="flag-icon flag-icon-nl"></i> Dutch
                                </a>
                                <a href="#" class="dropdown-item">
                                    <i class="flag-icon flag-icon-it"></i> Italian
                                </a>
                            </div>
                        
                    

                        
                            i18next
                                .use(window.i18nextXHRBackend)
                                .init({
                                    debug: true,
                                    fallbackLng: 'en',
                                    backend: {
                                        loadPath: "../../../app-assets/data/locales/{{lng}}/{{ns}}.json",
                                    },
                                    returnObjects: true
                                },
                                function (err, t) {
                                    // Initialize Localization
                                    jqueryI18next.init(i18next, $);
                                });