Registers a function to run every time the signal fires, and returns a connection whose :Disconnect() removes it. Handlers run in connection order with whatever arguments Signal:Fire passed.

​
Parameters

​
function
required
The function to run on each fire.

​
Returns

​
Connection
A connection with a :Disconnect() method.

​
Example

​
Errors

  • once: run a handler only once.
  • fire: trigger the handlers.