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-rw-r--r--README.md5
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@@ -409,6 +409,11 @@ 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