We introduce you to new Microsoft Edge features, JSON Viewer and Focus Mode, and explore new Edge DevTools. We also demo enhanced traces, a powerful leap forward in debugging and collaboration on the web by leveraging sourcemaps and Azure DevOps Symbol Server. Finally, we discuss common anti-patterns that negatively impact performance and how to fix them. Learn more about DevTools: https://aka.ms/Build-2023-DevTools Read the Microsoft Edge at Build 2023 blog: https://aka.ms/EdgeBuildBlog2023 #MSBuild #MicrosoftEdge #DevTools Chapters: (00:00) Intro (01:11) JSON Viewer (02:18) Overview of DevTools (03:32) Focus mode (06:38) Enhanced Traces (10:58) Selector Stats (13:40) Sourcemaps and unminification (16:55) Crash Analyzer (18:22) Anti-patterns