useRef hook ReactJS - How to use useRef hook in ReactJS
useRef is a built-in React hook that returns a mutable ref object, which can be used to hold a reference to a DOM element or any other value that needs to persist between renders.
The useRef hook is useful when you need to access a specific element in the DOM, such as to get its size or position, or to add or remove classes. You can create a ref object using the useRef hook and pass it to the ref attribute of the element you want to reference.
useRef can also be used to store any mutable value, which will persist between renders without causing the component to re-render. You can access the current value of the ref using the .current property.
One common use case for useRef is to store a reference to a child component so that you can call methods on it from the parent component.
It's important to note that updating the value of a ref does not trigger a re-render of the component. If you need to trigger a re-render when a value changes, you should use useState instead.
In this example, we create a ref object using useRef and assign it to the ref attribute of an input element. We also define a button with an onClick handler that calls the focus() method on the input element using the inputRef.current property.
Watch video useRef hook ReactJS - How to use useRef hook in ReactJS online without registration, duration hours minute second in high quality. This video was added by user ReactJS tutorials 14 February 2023, don't forget to share it with your friends and acquaintances, it has been viewed on our site 425 once and liked it 15 people.