# tutorial1.rb

require 'opal'
require 'opal/react'

class CommentBox < React::Component

  def render
    div(className: 'commentBox') do
      'Hello, world! I am a CommentBox.'
    end
  end
end

include React::DOM

$$.console.log ReactDOMServer.renderToStaticMarkup(
  CommentBox()
)