If you're doing any front-end dev work, take a look at https://replay.io https://replay.io . It's a true "time-traveling debugger": load your app in their cust

If you're doing any front-end dev work, take a look at https://replay.io https://replay.io . It's a true "time-traveling debugger": load your app in their custom browser, record yourself using the app (and reproducing a bug), the recording gets uploaded and processed on their servers, and then you use the debugging UI to investigate the code _at any point in time during the recording_. That includes full stepping debugger, variables inspection, integration with the React DevTools, and even retroactively adding print statements that print and show the values _at every time that line got hit during the recording_. I had a chance to play with it live during a recent Redux livestream just before New Year's, and I learned a few things while using it: https://www.youtube.com/watch?v=GvLGEuxV6BU https://www.youtube.com/watch?v=GvLGEuxV6BU Also btw, I'm the creator of Redux Toolkit - if you do have any questions or feedback on RTK, please let me know! In particular, last year we released our "RTK Query" data caching API as part of RTK 1.6, which eliminates the need to write any actual data fetching code yourself. If you use Redux but haven't had a chance to try RTKQ yet, you should give it a shot: https://redux.js.org/tutorials/essentials/part-7-rtk-query-basics https://redux.js.org/tutorials/essentials/part-7-rtk-query-b...