How to use datepicker gem in rails

 How to use datepicker gem in rails

1. Include bootstrap-datepicker-rails in Gemfile
     gem 'bootstrap-datepicker-rails'

2. Add this line to app/assets/stylesheets/application.css
   *= require bootstrap-datepicker3

3. Add this line to app/assets/javascripts/application.js
     //= require jquery3
     //= require bootstrap-sprockets
    //= require bootstrap-datepicker