Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

JavaScript React Basics (2018) Understanding State Remove Items From State

Posted by Ayman Elash
Ayman Elash
3,221 Points

A clear example on prevState ?

Can we have a clear example on how we should use prevState ?

3 Answers

Peter Vann
Peter Vann
36,425 Points
Peter Vann
Peter Vann
36,425 Points

Sorry - not sure why my answer sent twice!?! LOL (I think it was due to a VPN conflict on my end!?!)

BTW, I made this using React and Redux (my quirky take on the classic Simon Game coding challenge):

https://codepen.io/petrovnikov/full/MXxQPx