Unnecessary re-renders can slow down your app, especially when rendering large collections where updates to the collection occur frequently. The React docs sometimes refer to these as “wasted” renders.
I want to express my thanks to the organizers, Claudio and Anna, of the LA Ruby/Ruby on Rails Meetup, along with Stack Commerce, for hosting my talk on React on Rails. You can find the original meetup posting here.
React on Rails is the number one open source integration of React + Webpack + Ruby on Rails. If we take out Webpack from the equation, React on Rails is the number 2 integration solution, second only to reactjs/react-rails, which started 2 years earlier.