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instance method

Observable#changed

changed(state=true)

# File tmp/rubies/ruby-3.1.3/lib/observer.rb, line 194
def changed(state=true)
  @observer_state = state
end

Set the changed state of this object. Notifications will be sent only if the changed state is true.

See also #changed? #add_observer #count_observers also in 3.3 · 3.2 · 3.0