import { Injectable } from '@angular/core'; import { TranslateService } from '@ngx-translate/core'; @Injectable({ providedIn: 'root', }) export class LanguageService { languages: string[] = ['en', 'es', 'de', 'ua']; constructor(public translate: TranslateService) { let browserLang: string; translate.addLangs(this.languages); if (localStorage.getItem('lang')) { browserLang = localStorage.getItem('lang') as string; } else { browserLang = translate.getBrowserLang() as string; } console.log(browserLang.match(/en|es|de|ua/)); translate.use(browserLang.match(/en|es|de|ua/) ? browserLang : 'en'); } setLanguage(lang: string) { this.translate.use(lang); localStorage.setItem('lang', lang); } }