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use-event-listener for eventemitter3; unfortunately it has `any` for event arguments
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import EventEmitter from 'eventemitter3'; | |
import React from 'react'; | |
export function useEventsListener<T extends string>( | |
eventEmitter: EventEmitter, | |
eventsList: readonly T[], | |
eventsListener: (event: T, args: ...any[]) => void | |
) { | |
// deep compare array | |
// eslint-disable-next-line react-hooks/exhaustive-deps | |
const eventsListMemo = React.useMemo(() => eventsList, eventsList); | |
const savedHandler = React.useRef<typeof eventsListener>(); | |
React.useEffect(() => { | |
savedHandler.current = eventsListener; | |
}, [eventsListener]); | |
React.useEffect(() => { | |
const release = eventsListMemo.map((event) => { | |
const listener = (...args: any[]) => { | |
savedHandler.current?.(event, ...args); | |
}; | |
eventEmitter.on(event, listener); | |
return () => { | |
eventEmitter.off(event, listener); | |
}; | |
}); | |
return () => { | |
release.map((x) => x()); | |
}; | |
}, [eventEmitter, eventsListMemo]); | |
} | |
/* Example | |
useEventsListener(emitter, ['changed1', 'changed2'], (type, info: string) => { | |
if (type === 'changed1') { | |
console.log(type, info); | |
} else if (type === 'changed2') { | |
console.log(type, info); | |
} | |
}); | |
*/ |
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