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This is the archived documentation for Angular v17. Please visit angular.dev to see this page for the current version of Angular.

EffectCleanupFn

An effect can, optionally, register a cleanup function. If registered, the cleanup is executed before the next effect run. The cleanup function makes it possible to "cancel" any work that the previous effect run might have started.

      
      type EffectCleanupFn = () => void;