OptionalcssPath of library entry
OptionalfileThe name of the package file output. The default file name is the name option of the project package.json. It can also be defined as a function taking the format as an argument.
OptionalformatsOutput bundle formats
OptionalnameThe name of the exposed global variable. Required when the formats option includes
umd or iife
The name of the CSS file output if the library imports CSS. Defaults to the same value as
build.lib.fileNameif it's set a string, otherwise it falls back to the name option of the project package.json.