WebAssembly
Debugging WebAssembly in Browsers: DevTools, DWARF, and Source Maps
Debugging WebAssembly in browsers has historically been painful — you were staring at raw WAT (WebAssembly Text format) with cryptic variable names like $var0 and $var1. That's changed dramatically. Chrome 90+ and Firefox support DWARF debug information, letting you set breakpoints in your original Rust, C, or AssemblyScript source.