support let (#4227)

2020-10-19 01:32:39 +01:00
parent 6c7226c10e
commit 96bf7fceab
10 changed files with 1186 additions and 152 deletions
--- a/README.md
+++ b/README.md
@@ -784,6 +784,9 @@ to be `false` and all symbol names will be omitted.
 - `unused` (default: `true`) -- drop unreferenced functions and variables (simple
  direct variable assignments do not count as references unless set to `"keep_assign"`)

+- `varify` (default: `true`) -- convert block-scoped declaractions into `var`
+  whenever safe to do so
+
 ## Mangle options

 - `eval` (default `false`) -- Pass `true` to mangle names visible in scopes