providing static default language

Author: robertIsaac

src/app/app.module.ts

@@ -13,6 +13,14 @@ import { LocalizeParser, LocalizeRouterModule, LocalizeRouterSettings } from '@g
 import { localizeBrowserLoaderFactory } from './core/utils/localize-browser.loader';
 import { Location } from '@angular/common';
 
+export const defaultLangFunction = (languages: string[], cachedLang?: string): string => {
+  if (cachedLang && languages.includes(cachedLang)) {
+    return cachedLang;
+  } else {
+    return 'ar';
+  }
+};
+
 @NgModule({
   declarations: [
     AppComponent,
@@ -41,9 +49,11 @@ import { Location } from '@angular/common';
         deps: [TranslateService, Location, LocalizeRouterSettings, HttpClient, TransferState],
       },
       initialNavigation: true,
+      defaultLangFunction,
     }),
   ],
   providers: [],
   bootstrap: [AppComponent]
 })
-export class AppModule { }
+export class AppModule {
+}

src/app/app.server.module.ts

@@ -1,6 +1,6 @@
 import { NgModule } from '@angular/core';
 import { ServerModule, ServerTransferStateModule } from '@angular/platform-server';
-import { AppModule } from './app.module';
+import { AppModule, defaultLangFunction } from './app.module';
 import { AppComponent } from './app.component';
 import { TranslateLoader, TranslateModule, TranslateService } from '@ngx-translate/core';
 import { translateServerLoaderFactory } from './core/utils/translate-server.loader';
@@ -30,8 +30,10 @@ import { Location } from '@angular/common';
         deps: [TranslateService, Location, LocalizeRouterSettings, TransferState],
       },
       initialNavigation: true,
+      defaultLangFunction,
     }),
   ],
   bootstrap: [AppComponent],
 })
-export class AppServerModule {}
+export class AppServerModule {
+}