Shush some low-hanging Ruby warnings

2 files changed, 2 insertions, 2 deletions

diff --git a/lib/action_cable/connection/identification.rb b/lib/action_cable/connection/identification.rb
index 4e9beac058..95863795dd 100644
--- a/lib/action_cable/connection/identification.rb
+++ b/lib/action_cable/connection/identification.rb
@@ -22,7 +22,7 @@ module ActionCable
 
       # Return a single connection identifier that combines the value of all the registered identifiers into a single gid.
       def connection_identifier
-        if @connection_identifier.blank?
+        unless defined? @connection_identifier
           @connection_identifier = connection_gid identifiers.map { |id| instance_variable_get("@#{id}") }.compact
         end
 
diff --git a/lib/action_cable/server/connections.rb b/lib/action_cable/server/connections.rb
index 153cebd710..47dcea8c20 100644
--- a/lib/action_cable/server/connections.rb
+++ b/lib/action_cable/server/connections.rb
@@ -24,7 +24,7 @@ module ActionCable
       def setup_heartbeat_timer
         EM.next_tick do
           @heartbeat_timer ||= EventMachine.add_periodic_timer(BEAT_INTERVAL) do
-            EM.next_tick { connections.map &:beat }
+            EM.next_tick { connections.map(&:beat) }
           end
         end
       end