dict: Add documentation for why we have dict.js.

vfazio · Feb 5, 2018 · 6e0f3a9 · 6e0f3a9
1 parent 19acc17
commit 6e0f3a9
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/static/js/dict.js b/static/js/dict.js
@@ -1,4 +1,8 @@
 /* Constructs a new Dict object.
+ *
+ * This module primarily exists to support the fold_case option,
+ * because so many string keys in Zulip are case-insensitive (emails,
+ * stream names, topics, etc.).
  *
  * Dict(opt) -> the new Dict will be empty
  *