[Pkg-javascript-commits] [uglifyjs] 15/50: add documentation for `side_effects` & `[#@]__PURE__` (#1925)

[Jonas Smedegaard]

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js pushed a commit to branch master
in repository uglifyjs.

commit 9a985139812c07cf31c75b74e038d1f6efc63319
Author: olsonpm <olsonpm at users.noreply.github.com>
Date:   Thu May 11 23:29:55 2017 -0500

    add documentation for `side_effects` & `[#@]__PURE__` (#1925)
---
 README.md | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/README.md b/README.md
index 1d64fcb..8ec101f 100644
--- a/README.md
+++ b/README.md
@@ -443,6 +443,11 @@ to set `true`; it's effectively a shortcut for `foo=true`).
 - `keep_infinity` -- default `false`. Pass `true` to prevent `Infinity` from
   being compressed into `1/0`, which may cause performance issues on Chrome.
 
+- `side_effects` -- default `false`. Pass `true` to potentially drop functions
+marked as "pure".  (A function is marked as "pure" via the comment annotation
+`/* @__PURE__ */` or `/* #__PURE__ */`)
+
+
 ### The `unsafe` option
 
 It enables some transformations that *might* break code logic in certain

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