JSFiddle - React, Tailwind, and code Playground
CoffeeScript
Timer = React.createClass
getInitialState: ->
secondsElapsed: 0
tick: React.autoBind ->
@setState secondsElapsed: @state.secondsElapsed + 1
componentDidMount: ->
setInterval @tick, 1000
render: ->
(React.DOM.div {}, [
'Seconds Elapsed: ' + @state.secondsElapsed
])
React.renderComponent (Timer {}), document.body