feat(iter): add is_empty

kollhof · kollhof · commit e08de191ce9b · 2020-05-31T19:24:30.000+02:00
diff --git a/src/iter.fnk b/src/iter.fnk
@@ -125,6 +125,9 @@ length = fn iterable:
     else: -1
 
 
+is_empty = 0 == length ?
+
+
 # TODO: should this live in str?
 # TODO: should it be fn iterable, sep?
 join = fn sep: fn iterable:
