goog.pubsub Namespacegoog.pubsub.PubSub ClassTopic-based publish/subscribe channel. Maintains a map of topics to subscriptions. When a message is published to a topic, all functions subscribed to that topic are invoked in the order they were added. Uncaught errors abort publishing. Topics may be identified by any nonempty string, except strings corresponding to native Object properties, e.g. "constructor", "toString", "hasOwnProperty", etc. … more