
…ince React 16+ snapshots its commits in the profiler. However, it records way more than just React. We were also not interested in the cost on V8 since we were trying to improve performance on JSC. Luckily, both of these could be solved since late last year the React team released a React Profile…
…an unacceptable amount of time being spent parsing messages. After further digging we realized that running our Unicode emoji detection was extremely expensive on JSC but basically free on V8. We were — for the last four years — concatenating hundreds of Unicode sym…