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How do you suppose setting a dynamic ref now?
Im getting an error cannot set property of 'test' undefined, if I use
<View ref={(ref) => this.someRef['test'] = ref;}/>
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Callback Refs The function receives the React component instance or HTML DOM element as its argument, which can be stored and accessed elsewhere. The example below implements a common pattern: using the ref callback to store a reference to a DOM node in an instance property. class CustomTextInput extends React.
To add refs to React components, we first create a ref, and then we add the ref to the component using the ref attribute. There are two ways to create refs in React the first is by using React. createRef() method or the useRef() hook.
Q-5: Which is preferred option with in callback refs and findDOMNode()? It is preferred to use callback refs over findDOMNode() API. Because findDOMNode() prevents certain improvements in React in the future.
We should not use ref attribute on function components because they do not have instances. React will assign the current property with Dom element when component mount and assign null to it when component unmount. ref updates happen before componentDidMount or componentDidUpdate methods.
You have to set this.someRef to an array or object before assigning a property to it.
this.someRef = [];
or
this.someRef = {};
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