enhance `side_effects` (#4124)
authorAlex Lam S.L <alexlamsl@gmail.com>
Fri, 18 Sep 2020 13:35:29 +0000 (14:35 +0100)
committerGitHub <noreply@github.com>
Fri, 18 Sep 2020 13:35:29 +0000 (21:35 +0800)
commit38a46c86d7163002ad079eb9dd690e18b5c9da8f
tree9a1a4c1cfdd93c6aa577f53c6a143715fbb4707f
parent0f0759ec15d32673333b2397882a7f3e043d4cf9
enhance `side_effects` (#4124)

- add documentation for `merge_vars`
README.md
lib/compress.js
test/compress/side_effects.js