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- substr is Annex B - substring silently flips its arguments if they're in the "wrong order", which is confusing - slice is better than sliced bread (no pun intended) and also it works the same way on Arrays so there's less to remember --- > I'd be down to just lint and enforce a single form just for the potential compression savings by using a repeated string. _Originally posted by @sebmarkbage in https://github.com/facebook/react/pull/26663#discussion_r1170455401_
React Concurrent Mode Profiler
This package contains the new/experimental "timeline" for React 18. This profiler exists as its own project because it was initially deployed as a standalone app. It has since been moved into the DevTools Profiler under the "Scheduling" tab. This package will likely eventually be moved into react-devtools-shared.