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instance method

Observable#notify_observers

notify_observers(*arg)

# File tmp/rubies/ruby-3.1.3/lib/observer.rb, line 218
def notify_observers(*arg)
  if defined? @observer_state and @observer_state
    if defined? @observer_peers
      @observer_peers.each do |k, v|
        k.__send__(v, *arg)
      end
    end
    @observer_state = false
  end
end

Notify observers of a change in state if this object’s changed state is true.

This will invoke the method named in add_observer, passing *arg. The changed state is then set to false.

*arg: Any arguments to pass to the observers.

See also #delete_observers #delete_observer also in 3.3 · 3.2 · 3.0

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