However, note that we start by setting the type of inputRef as either a HTMLInputElement or null. Also if you want this to fire only onUpdate and not on mount you can use the useRef hook as shown below. You have to pass props as an argument (that is what it is originally) to the functional component. You should either call this method from componentWillUnmount or check to ensure that the component is still mounted within the delayed function. Warning: Function components cannot be given refs warning in React using forwardRef, Error: Too many re-renders. React limits the number of renders to prevent an infinite loop when using useState(). Since these are my first articles any feedback will be valuable. However, when clicking on the button to re-render, the node was first null and then it was the actual element again. Find centralized, trusted content and collaborate around the technologies you use most. This is useful when you have to await the return value of a Promise, or run some https://linguinecode.com/post/how-to-use-react-useref-with-typescript Also, IMHO if setVar is called but doesn't actually change var (e.g passing the same variable) then your UI shouldn't have to update. ,Software ANYCODINGS-react Recommendations, It Sounds Like AnotherComponent Does Not Take Into Consideration The Changed Prop - This Should Be Considered To Be A Bug In AnotherComponent. Using refs in React functional components (part 1) - useRef + callback ref, Using refs in React functional components (part 2) - forwardRef + useImperativeHandle, Using refs in React functional components (part 3) - instance-like variable, // with this we know node is not null or undefined, Refs in React Functional Components (3 Part Series), https://moduscreate.com/blog/everything-you-need-to-know-about-refs-in-react/, https://blog.logrocket.com/how-to-use-react-createref-ea014ad09dba/, https://medium.com/trabe/react-useref-hook-b6c9d39e2022, https://elfi-y.medium.com/react-callback-refs-a-4bd2da317269, https://linguinecode.com/post/how-to-use-react-useref-with-typescript, https://reactjs.org/docs/refs-and-the-dom.html, Articles you may have missed last week but it's worth reading , Automate components creation in React project, Accessing underlying DOM nodes or React Elements, Creating mutable instance-like variables for functional components. Check Out The Code Block Below: In The Example Above, Weve Made The CarList Component Responsible For Fetchig And Displaying Of Data But Theres A Catch, CarList Cannot Be Used Unless Under The Same Conditions. Edit: There are basically two use cases for refs in React: In the following sections and next posts I will try to cover some use cases with examples of common scenarios. Would it make sense to have a useEffect listen on the productionCardList.length?