See Scope hoisting for how to optimize your code for tree shaking.
¶ Inspecting bundle size
Parcel has builtin plugins for a few tools to help with analyzing bundle size.
¶ Bundle Analyzer
To generate a HTML file for every bundle, run the
@parcel/reporter-bundle-analyzer plugin (using the
--reporter flag or via
"reporters" in .parcelrc):
This generates a folder
parcel-bundle-reports in your project root with an HTML file for every target:
¶ Bundle Buddy
Upload the files in the dist directory on the Bundle Buddy website.