How would you let a user switch the display language of an Angular app using a simple dropdown menu?

With a runtime translation approach like ngx-translate, you store the currently selected language and call the service's use method whenever the user picks a new option, letting all translated text on the page update immediately without needing to reload the browser.

<select (change)="switchLanguage($event.target.value)">
  <option value="en">English</option>
  <option value="fr">French</option>
</select>

switchLanguage(lang: string) {
  this.translate.use(lang);
}