I'm a C++ developer, not a frontend developer. I can debug C++ executables, because of debug symbols and gdb. I generally don't need to know any assembly for debugging.
If Svelte is compiles down to JS where the connection between the compiled down code and the source code is unclear then maybe they need similar tooling to address this.
I've been testing Svelte for a project, and it seems to generate good source maps. In the Firefox Dev Tools, you can just breakpoint on .Svelte files with no issues.
If Svelte is compiles down to JS where the connection between the compiled down code and the source code is unclear then maybe they need similar tooling to address this.