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Extra code found in the production build

See original GitHub issue

Bug report

What is the current behavior?

input: https://github.com/dgeibi/webpack-tree-shaking-bug/blob/master/src/App.js

extra useRef() found in the production build

If the current behavior is a bug, please provide the steps to reproduce.

clone https://github.com/dgeibi/webpack-tree-shaking-bug

npm run build

output: dist/main.js

What is the expected behavior?

no extra useRef() in the useEffect’s callback

Other relevant information: webpack version: 4.46.0 and 5.33.2 Node.js version: 14.16.0 Operating System: macOS 11.2.3 Additional tools:

Issue Analytics

State:
Created 2 years ago
Comments:10 (6 by maintainers)

Top GitHub Comments

1reaction

alexander-akaitcommented, Apr 29, 2021

Fixed in 5.7.0, please update deps (https://github.com/terser/terser/commits/master), let’s close, for webpack we have PR from dependabot

@csvan thanks for point on this

0reactions

csvancommented, Apr 29, 2021

Seems to be closed in Terser, but not sure if released

https://github.com/terser/terser/commit/84c1a314ed43fa3f367159c140175791b5d06b9c

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