Magic Gate function for Node-RED, it let's you repeat messages arbitrarily

Magic Gate

/* This function node will store the last message it
   received as long as msg.payload != "abracadabra".
   If this function receives a msg where the payload
   exactly equals "abracadabra" then the stored
   message will be forwarded.
   
   This function is designed for storing and replaying
   messages to help in testing flows.  You can use it
   by wiring up between two nodes where you want to
   control or repeat messages, and also adding an
   INJECT input that sends a the magic word in the
   payload.
   
   ---Hovis
*/

context.storedMessage = context.storedMessage || {};

if (msg.payload != "abracadabra") {
  context.storedMessage = msg;
} else {
  return context.storedMessage;
}