[akrumel]

Intriguing. Been too busy cranking on a new product to stay up on the latest changes so thanks for the pointer. I have lots of reading to do.

And thanks for listening about my use case. One concern about using a static function for getDerivedStateFromProps() is that it will not allow for taking instance variables into account. Have not thought through how that might come into play but components certainly allow for this, though many may feel it a strange idea. Perhaps a reference to the component could be passed as well as an additional argument.

I look forward to coming up for air and catching up with the improved approach. Things continue to move quickly and I continue to be impressed at how the changes bring improvement to the ecosystem.

[danabramov]

Lack of instance is intentional—otherwise we would’ve made it an instance method. Happy to hear about specific patterns you’re aiming for but since getDerivedStateFromProps executes during the “render phase” (interruptible in async mode) we want people to treat it as pure and discourage them from any side effects and mutations. If you really need some instance variable there then perhaps you could move it into state.