useKeyup

Get window size by hooks keyup event without side-effect.

Install

$ npm install use-keyup

How to use?

This example will auto removeEventListener when component unmounted.

import useKeyup from 'use-keyup';
const demo = () => {
  const [key, setKey] = useState([]);
  useKeyup(e => setKey(e.code));
  return <p>keyup {key}</p>;
};

Explicity Clean the handler.

import useKeyup from 'use-keyup';
const demo = () => {
  const [key, setKey] = useState([]);
  const [cleanUp] = useKeyup(e => setKey(e.code));
  useEffect(() => {
    setTimeout(cleanUp, 3000);
    // Set timer when mounted & after 3sec clean keyup
  }, []);
  return <p>keyup {key}</p>;
};

What I Do?

Call clean-up function (to removeEventListener) when component has been unmounted.

Also, I export a cleanUp function, you can use this to explicity remove events when you need.

Why This has a dependency of createEventTargetHook

This is a hooks infrastructure for easily package a event hooks.

See more createEventTargetHook.