TTC
Theo's Typesafe Cult•9mo ago
celtic426

Can you store refs in an object in React?

In a component we need 9 different refs (don't ask 🙂 ). If we put the refs in an object like this will they be referentially stable? I fear on every render the object will be reevluated, but using an object just makes it a bit cleaner. 
const refs = {
    contextChildrenActive: useRef(null),
    primaryNavBar: useRef(null),
    drawerLinksIcon: useRef(null),
    viewName: useRef(null),
    defaultCentralEl: useRef(null),
    datePicker: useRef(null),
    mobileMore: useRef(null),
    rightElement: useRef(null),
    moreMenu: useRef(null)
  };
const refs = {
    contextChildrenActive: useRef(null),
    primaryNavBar: useRef(null),
    drawerLinksIcon: useRef(null),
    viewName: useRef(null),
    defaultCentralEl: useRef(null),
    datePicker: useRef(null),
    mobileMore: useRef(null),
    rightElement: useRef(null),
    moreMenu: useRef(null)
  };
1 Reply
ayoub_owl
ayoub_owl•9mo ago
I think what you can do is this 
  const refs = useRef({
    contextChildrenActive: null,
    primaryNavBar: null,
    ...
  });

  return (
    <div className="App">
      <div ref={(ref) => (ref.current.contextChildrenActive = ref)} type="text" />
      <div ref={(ref) => (ref.current.primaryNavBar = ref)} type="text" />
    </div>
  );
  const refs = useRef({
    contextChildrenActive: null,
    primaryNavBar: null,
    ...
  });

  return (
    <div className="App">
      <div ref={(ref) => (ref.current.contextChildrenActive = ref)} type="text" />
      <div ref={(ref) => (ref.current.primaryNavBar = ref)} type="text" />
    </div>
  );
you could even use an array

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