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Fragment refs RFC #97

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Fragment refs RFC #97

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299254d
Fragment refs RFC
sebmarkbage Dec 10, 2018
7531415
Use callback ref in advanced example
sebmarkbage Dec 10, 2018
ce516e5
Clarify the drill through
sebmarkbage Dec 10, 2018
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Use callback ref in advanced example
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@sebmarkbage
sebmarkbage committed Dec 10, 2018
commit 7531415949ae3c0935410f65c9e4a75cd451c496
17 changes: 11 additions & 6 deletions text/0000-fragment-refs.md
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Expand Up @@ -56,12 +56,17 @@ The concrete proposal here is that we'd enable a `ref` to be passed to a `<Fragm

```js
function Foo({children}) {
let fragmentRef = useRef();
useEffect(() => {
let domNodes = fragmentRef.current; // Array<DOMNode>
// ...
});
return <Fragment ref={fragmentRef}>{children}</Fragment>;
function handleRef(childNodes) {
if (childNodes === null) {
// unmounted
} else {
// mounted, reordered, or removed nodes
for (let node of childNodes) {
// ...
}
}
}
return <Fragment ref={handleRef}>{children}</Fragment>;
}
```

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