title: Redux: Is it necessary?
body: <p>Is a reducer like <a href="http://redux.js.org/docs/basics/Reducers.html" rel="nofollow">Redux</a> really necessary when developing with <a href="https://facebook.github.io/react/" rel="nofollow">ReactJS</a>?
  Is it just a way to design cleaner code?
  If so, when?</p>