Code
(javascript)
import { useEffect, useState } from 'react'
export const useMediaQuery = (query) => {
const [state, setState] = useState(false)
useEffect(() => {
let mounted = true
// Returns a MediaQueryList object
const mql = window.matchMedia(query)
const onChange = () => {
if (!mounted) return
setState(!!mql.matches)
}
mql.addListener(onChange)
setState(mql.matches)
// clean up
return () => {
mounted = false
mql.removeListener(onChange)
}
}, [query])
return state
}Context
If you have a special case, when you need to get media query result inside you react app (for example, you want to show different components on mobile and desktop) this is the way to do so.
Usage
(javascript)
const EffecfulComponent = () => {
const result = useMediaQuery(`screen and (max-width: 400px)`);
return <span>{result.toString()}</span>;
};
const biggerThan400 = useMediaQuery(`(min-width: 400px)`);
return <div>
{biggerThan400 && <button>SomeButton</button>}
</div>