Frontend & browser·Modules, bundling and the build
the build wrote out eleven numbered JavaScript files and the page only requests three of them.
Chunk
Also calledoutput chunk, split bundle
One output file produced by the bundler, containing a subset of the module graph. Chunk boundaries decide what is downloaded when and what can be cached independently, so how the graph is cut matters more than how much of it there is. Too few chunks and every change invalidates everything; too many and you pay per-request overhead and lose compression efficiency.