Observable#changed?

changed?

# File tmp/rubies/ruby-3.3.0/lib/observer.rb, line 202
def changed?
  if defined? @observer_state and @observer_state
    true
  else
    false
  end
end

Returns true if this object’s state has been changed since the last notify_observers call.

See also #changed #count_observers #add_observer #delete_observer also in 3.2 · 3.1 · 3.0

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