Package Exports
- use-callback-ref
This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (use-callback-ref) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.
Readme
API
API is 99% compatible with React createRef
and useRef
, and just adds another argument - callback
,
which would be called on ref update.
createCallbackRef(callback)
- (aka React.createRef) would call provided callback when ref is changed.useRef(initialValue, callback)
- (aka React.useRef)would call provided callback when ref is changed.callback
in both cases iscallback(newValue, oldValue)
. Callback would not be called if newValue and oldValue is the same.
import {useRef, createRef, useState} from 'react';
import {useCallbackRef, createCallbackRef} from 'use-callback-ref';
const Component = () => {
const [,forceUpdate] = useState();
// I dont need callback when ref changes
const ref = useRef(null);
// but sometimes - it could be what you need
const anotherRef = useCallbackRef(null, () => forceUpdate());
useEffect( () => {
// now it's just possible
}, [anotherRef.current]) // react to dom node change
}
License
MIT