The translate helper manages loading and retrieving strings in your user interface. Translations are stored as YAML files in a ./locales folder. Each locale file should contain the same keys which you access using the _t function in your application. Using the _t function allows you to change the target locale in order to change the language of the stirngs that appear in your user interface.
To add the translate helper to your application you must download it and add the translate folder to your application helpers folder.
Click on the green Clone or download button on the GitHub page and select Download ZIP from the menu that appears. Grab the folder from the archive and rename it to translate. Add the renamed folder to your application helpers folder.
Locale files are YAML files stored in a locales folder that sits alongsde the app.yml file. You add a separate locale file for each language you want to support. A locale value contains key:value pairs.
# ./locales/en.yml
greeting: Hi there!
# ./locales/fr.yml
greeting: Salut!
# Display "Hi there!" to the user
translateSetLocale "en"
answer _t("greeting")
# Display "Salut!" to the user
translateSetLocale "fr"
answer _t("greeting")