Ionic Translate

for useStaticFilesLoader, in app.module.ts:

  import {TranslateModule, TranslateLoader} from '@ngx-translate/core';
  import {TranslateHttpLoader} from '@ngx-translate/http-loader';

 ...

 export function exportTranslateStaticLoader(http: Http) {
    return new TranslateHttpLoader(http, './assets/i18n/', '.json');
 }

 @NgModule({
   ...
   imports: [
      ...
      TranslateModule.forRoot({
            loader: {
                provide: TranslateLoader,
                useFactory: exportTranslateStaticLoader,
                deps: [Http]
            }
        }
    )