Feature Request: Generate CSV String from Array about csv HOT 5 CLOSED

diff --git a/lib/csv/core_ext/array.rb b/lib/csv/core_ext/array.rb
index 8beb06b..0180deb 100644
--- a/lib/csv/core_ext/array.rb
+++ b/lib/csv/core_ext/array.rb
@@ -4,6 +4,16 @@ class Array # :nodoc:
   #   ["CSV", "data"].to_csv
   #     #=> "CSV,data\n"
   def to_csv(**options)
-    CSV.generate_line(self, **options)
+    case first
+    when Array
+      output = +""
+      csv = CSV.new(output, **options)
+      each do |row|
+        csv << row
+      end
+      output
+    else
+      CSV.generate_line(self, **options)
+    end
   end
 end