ReactJS - render called, but DOM not updated

Question

This has happened to me a few times. I have always managed to work around the issue, yet I am still intrigued to understand why this happens, and what I have missed.

Ess

Answer 1

Can you share the button onClick code? I might be wrong but this looks like an incorrectly set button onClick listener.

Make sure that onClick callback is defined without (), i.e.

instead of:

Post more code so we can get a better (bigger) picture