Using Internationalisation in JS files in a Rails Project

application.js

//= require i18n
//= require i18n/translations

/**NOTE : for internationalization set default to english */
I18n.defaultLocale = "en";
I18n.locale = "en";


//Example usage in javascript
I18n.t("swing_analysis_help_text.1.paragraphs")

Gemfile

#NOTE Rails I18n translations on the Javascript.
gem 'i18n-js','2.1.2'

reference.md

NOTE: For installations, configurations and advanced usage.

refer [i18-js] (https://github.com/fnando/i18n-js)