This example demonstrates how Webpack performs tree shaking for CommonJS modules.

example.js

_{{example.js}}_

increment.js

_{{increment.js}}_

math.js

_{{math.js}}_

dist/output.js

_{{dist/output.js}}_

dist/output.js (production)

_{{production:dist/output.js}}_

dist/without.js (same without tree shaking)

_{{production:dist/without.js}}_

Info

Unoptimized

_{{stdout}}_

Production mode

_{{production:stdout}}_