Modern web debugging in Chrome DevTools - Chrome Developers
Today, authors can use many abstractions to build their Web applications. Instead of directly interfacing with the lower-level APIs that the Web Platform provides, many authors leverage frameworks, build tools and compilers to write their applications from a higher-level perspective. For example, components built on top of the Angular framework are authored in TypeScript with HTML templates.
https://developer.chrome.com/en/blog/devtools-modern-web-debugging/
