In React, Redux as a container for &quot;state&quot;. I think your first link is incorrect, and should instead be: <a href="http:&#x2F;&#x2F;rackt.github.io&#x2F;redux&#x2F;" rel="nofollow">http:&#x2F;&#x2F;rackt.github.io&#x2F;redux&#x2F;</a>