Add missing typescript definition for hash options (#315)

Author: deymundson

index.d.ts

@@ -15,7 +15,7 @@ export interface DetectorOptions {
    * order and from where user language should be detected
    */
   order?: Array<
-    'querystring' | 'cookie' | 'sessionStorage' | 'localStorage' | 'navigator' | 'htmlTag' | string
+    'querystring' | 'hash' | 'cookie' | 'sessionStorage' | 'localStorage' | 'navigator' | 'htmlTag' | string
   >;
 
   /**
@@ -27,6 +27,8 @@ export interface DetectorOptions {
   lookupLocalStorage?: string;
   lookupFromPathIndex?: number;
   lookupFromSubdomainIndex?: number;
+  lookupHash?: string;
+  lookupFromHashIndex?: number;
 
   /**
    * cache user language on

test/typescript/usage.test.ts

@@ -7,12 +7,14 @@ import i18next from 'i18next';
 
 const options: DetectorOptions = {
   // order and from where user language should be detected
-  order: ['querystring', 'cookie', 'localStorage', 'navigator', 'htmlTag'],
+  order: ['querystring', 'hash', 'cookie', 'localStorage', 'navigator', 'htmlTag'],
 
   // keys or params to lookup language from
   lookupQuerystring: 'lng',
   lookupCookie: 'i18next',
   lookupLocalStorage: 'i18nextLng',
+  lookupHash: 'lng',
+  lookupFromHashIndex: 0,
 
   // cache user language on
   caches: ['localStorage', 'cookie'],