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# Conflicts: # addons/actions/package.json # addons/events/package.json # addons/events/src/index.ts # addons/ondevice-notes/package.json # dev-kits/addon-roundtrip/package.json # examples/dev-kits/package.json # examples/html-kitchen-sink/package.json # lib/client-api/package.json # lib/client-api/src/client_api.ts # lib/client-api/src/typings.d.ts # lib/client-api/tsconfig.json # lib/ui/src/index.js # yarn.lock
example addon: decorator
This addon exposes a function users can use to wrap their storyFn with. This is called a decorator in storybook's terminology.
A decorator can perform analysis on the storyFn, detect how long it takes to render, detect side-effects, and have access to the storyContext.
It's also possible to wrap the results with some additional html/jsx or provide additional data to the storyFn.
Uses include:
- do side-effects detection
- wrap story with additional html
- add data to storyFn