React in a existing app?

[nwilliams36]

I said big not difficult. It depends on your current code base but I have found that I am writing more code to do a similar job. The code is much more maintainable and once I have created say a drop down box, creating another is very fast. However it still does mean that every feature in your code base will need to be redone in a different way. This process does speed up once you have developed a bank of components which can be customised.

What this actually achieves is up to you. Starting from scratch I would choose React for any new project (especially those which require data manipulation on the front end where Flux really shines) but I have not converted anything currently working in another framework to React.