Angular performance debugging just got much easier
Chrome DevTools can now take you directly to the exact Angular component instance causing a performance problem.
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In this video, we’ll profile an Angular dashboard containing four instances of the same ReportCard component. Chrome identifies the slow component type, but which instance is actually responsible? We’ll enable Angular’s Chrome Performance integration, examine the Angular custom track, and use the new Component deep link to jump directly from the performance trace to the slow component instance in Angular DevTools.
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🔗 Demo Links:
https://github.com/brianmtreese/angul...
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📚 Additional Resources:
Chrome Angular DevTools Extension: https://chromewebstore.google.com/det...
Extensibility API support for deep-links within DevTools Flag: chrome://flags/#enable-devtools-deep-link-via-extensibility-api
Angular enableProfiling() API: https://angular.dev/api/core/enablePr...
My course "Angular Application Styling": https://www.pluralsight.com/courses/a...
My course "Zoneless Change Detection in Angular": https://app.pluralsight.com/library/c...
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📖 Chapters:
0:00 – Introduction
0:17 – Debugging a Slow Angular Component
0:54 – Find Slow Angular Components in Chrome DevTools
1:47 – Why the Component Name Isn’t Enough
2:45 – Enable Angular Component Deep Links in Chrome
3:21 – Enable Angular Profiling with enableProfiling()
4:14 – Angular vs. Angular DevTools Performance Tracks
5:10 – Jump to the Exact Angular Component Instance
5:40 – Faster Angular Performance Debugging
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🧰 About the Tools Used
Chrome DevTools records browser and Angular performance activity in the Performance panel. Calling enableProfiling() before bootstrapping enables Angular to emit framework-specific timing events for components, templates, change detection, synchronization passes, and lifecycle hooks. The Angular DevTools extension handles the component deep link and selects the matching instance in its Components tab.
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#angular #angulardevtools #chromedevtools #webperformance #frontenddevelopment
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