easy-going-rails/app/helpers/icon_helper.rb

# Font Awesome Helper
module IconHelper
  def icon(name = :home, classname = nil, options = {}, style: :regular)
    clazz = "fa-#{style.to_s.dasherize} fa-#{name.to_s.dasherize}"
    clazz += " #{options[:class]}" if options[:class]
    clazz += " #{classname}" if classname
    tag.i(class: clazz)
  end
end