simplify comparisons with `undefined` & `null` (#2862)
authorAlex Lam S.L <alexlamsl@gmail.com>
Thu, 1 Feb 2018 08:50:54 +0000 (16:50 +0800)
committerGitHub <noreply@github.com>
Thu, 1 Feb 2018 08:50:54 +0000 (16:50 +0800)
commitfad6766a905350574b698af707958294e22184f3
tree351ba576da9fcfc99a020d06dfc9f53e094689fe
parentaa664dea0a07656d1fa61263e3a03e7d8b5c4cc9
simplify comparisons with `undefined` & `null` (#2862)

fixes #2857
lib/compress.js
test/compress/comparing.js