Beginner Fundamentals

Browser Developer Tools

Inspecting elements, debugging, network analysis, and performance profiling.

Mastering Browser DevTools

DevTools are essential for debugging and optimizing web applications.

Key Panels

  • Elements: Inspect and modify DOM/CSS live
  • Console: JavaScript REPL and logging
  • Network: Monitor all HTTP requests
  • Sources: Debugging with breakpoints
  • Performance: Profiling and flame charts
  • Application: Storage, service workers, PWA