import { storiesOf } from '@storybook/react'; import * as React from 'react'; import { useEffectOnce } from '../src'; import ConsoleStory from './util/ConsoleStory'; import ShowDocs from './util/ShowDocs'; const Demo = () => { useEffectOnce(() => { console.log('Running effect once on mount'); return () => { console.log('Running clean-up of effect on unmount'); }; }); return ; }; storiesOf('Lifecycle/useEffectOnce', module) .add('Docs', () => ) .add('Demo', () => );