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You might have used Chrome’s Developer Tools to profile your JavaScript to improve performance or find bottlenecks. DevTools is fantastic, but there’s a lot of potentially useful information that the performance panel doesn’t capture. Enter Chrome Tracing: a tool that’s built into Chrome (and Electron) that can collect a huge variety of detailed performance data. At Slack, we use Chrome Tracing to diagnose complex performance issues, and hopefully after reading this, you’ll be able to as well.Ch...