ReactJS was designed and released by Facebook in 2013 and has become a staple for Single Page Applications. To this day it’s supported and updated by Facebook and various independent contributors. React allows a programmer to really quickly and easily design and implement a front end application for their needs.
To begin with, let’s keep in mind that React is fundamentally different than WordPress. With React you write an application from scratch while with wordpress you’re generally using themes designed by other users to implement a quick and stylish website. WordPress is excellent for its ability to quickly design a website with decent generalized capabilities such as login systems, blog posts and online stores. WordPress leverages the fact that people will implement customized modules to enhance their experience with the platform. On the other hand, with React you get the freedom of designing your website from the ground up implementing only the features that you need. Using React means that the UI will also be customized completely without options for installing templates. Both platforms have benefits and drawbacks to their design. It is up to the user to identify which solution works best for them.
With the stack I mentioned above, it is possible to produce high quality customized web applications quickly for consumers to use. This may not always be the best solutions for business starting out, however a growing business will inevitably require a more customized approach to their web space whether that be for marketing, informational or application purposes.