Source Maps

Source maps are files that map compiled code back to its original code, eliminating the difficulty of debugging compressed code with shorter variable names. They are generated by build tools like Vite, webpack, Rollup, Parcel, esbuild, and more.

These files contain crucial information about how the compiled code maps back to the original code, making it easier for developers to debug. The anatomy of a source map can be understood by looking at its fields, which can be found in the source map specification or in an article that explains it.

The mappings between files are shown in browser Developer Tools, making it easier for developers to find and resolve issues. Source map extensions like x_google_ignoreList can also help developers focus on their code.