Adding Internationalization Support to Angular Applications

• Enable i18n: In your Angular project's configuration file (angular.json), enable i18n support by setting the "i18n" property to true.

                        
                          "i18n": true
                        
                    

• Extract Translatable Text: Use Angular's built-in i18n attribute in HTML templates to mark translatable text. For example:

                        
                        <p i18n>Welcome to my app!</p>
                        
                    

• Generate Translation Files: Use the Angular CLI to extract translatable text and generate translation files for different languages.

                        
                        ng xi18n --output-path src/locale
                        
                    

• Translate Text: Convert this translatable text (example: messages.xlf) to intended language (e.g., English; Spanish; Chinese etc.) in each translation file.
• Configure Localization: Updating angular.json file, which is a configuration file of the project using angular, to set translations files for different languages.

                        
                        "localize": ["en", "fr", "de"]
                        
                    

• Build and Serve: Build and serve your Angular application, and it will automatically display the appropriate language based on the user's browser settings.

                        
                        ng serve --configuration=de
                        
                    

Using Angular's Built-in i18n Features for Localization

• Translation Pipes: Angular supplies out-of-the-box pipes for you illustrate the translated text within your tags. Utilize the | translate }{{value}} pipe to render translated text.

                        
                        <p>{{ 'Welcome to my app!' | translate }}</p>
                        
                    

• Localizing Date, Number, and Currency Formats: The on-board pipe layout allows for Angular localization with date, number, and currency formats. {{ value | date }], {{value | currency}} and {{ value | number}} pipelines should be used with appropriate locale settings

                        
<p>{{ today | date }}</p>
<p>{{ price | currency }}</p>

                        
                    

• Language Switching: In your Angular app you can add multi-lanuage switching feature to make it possible to switch languages instantly. This can be done by implementing language translation mechanism and changing the application's locale settings to the specified language.