let i18nextBrowserLanguageDetector detect the lang

node_modules/i18next-browser-languagedetector/index.d.ts

@@ -0,0 +1,66 @@
+declare namespace I18nextBrowserLanguageDetector {
+  interface DetectorOptions {
+    /**
+     * order and from where user language should be detected
+     */
+    order?: Array<"querystring" | "cookie" | "localStorage" | "navigator" | "htmlTag" | string>;
+
+    /**
+     * keys or params to lookup language from
+     */
+    lookupQuerystring?: string;
+    lookupCookie?: string;
+    lookupLocalStorage?: string;
+
+    /**
+     * cache user language on
+     */
+    caches?: string[];
+
+    /**
+     * languages to not persist (cookie, localStorage)
+     */
+    excludeCacheFor?: string[];
+
+    /**
+     * optional expire and domain for set cookie
+     * @default 10
+     */
+    cookieMinutes?: number;
+    cookieDomain?: string;
+
+    /**
+     * optional htmlTag with lang attribute
+     * @default document.documentElement
+     */
+    htmlTag?: HTMLElement | null;
+  }
+
+  interface CustomDetector {
+    name: string;
+    cacheUserLanguage?(lng: string, options: DetectorOptions): void;
+    lookup(options: DetectorOptions): string | undefined;
+  }
+}
+
+export default class I18nextBrowserLanguageDetector {
+  constructor(services?: any, options?: I18nextBrowserLanguageDetector.DetectorOptions);
+  /**
+   * Adds detector.
+   */
+  addDetector(detector: I18nextBrowserLanguageDetector.CustomDetector): I18nextBrowserLanguageDetector;
+
+  /**
+   * Initializes detector.
+   */
+  init(services?: any, options?: I18nextBrowserLanguageDetector.DetectorOptions): void;
+
+  detect(detectionOrder?: I18nextBrowserLanguageDetector.DetectorOptions): string | undefined;
+
+  cacheUserLanguage(lng: string, caches?: string[]): void;
+
+  type: "languageDetector";
+  detectors: { [key: string]: any };
+  services: any;
+  i18nOptions: any;
+}