game.coffee

React = require 'react'
{map} = require 'ramda'
{div, ul, li, button} = require ('./tag')
React.render ( div [
    div [
      'Assets:', 
      ul map ((a)-> li [a.type]), w.player.assets
    ]
    button {onClick: act 'hurtAliens'}, 'Hurt aliens'
    button {onClick: act 'getHelp'}, 'Get help'
]), document.getElementById 'game'

tag.coffee

React = require 'react'
{isArrayLike} = require 'ramda'
# str -> fn
tag = (name) -> (args...)->
    if isArrayLike args[0]
        attrs = null
        children = args
    else
        attrs = args[0]
        children = args.slice 1
    React.createElement name, attrs, children...

module.exports =
    tag: tag
    div: tag 'div'
    button: tag 'button'
    h1: tag 'h1'
    ul: tag 'ul'
    li: tag 'li'