When would you use useRef?
useRef
is used in React functional components when you need to keep a mutable value around across renders without triggering a re-render. It’s commonly used for accessing DOM elements, caching values, or storing mutable variables. You can use useRef
to manage focus within your components, such as focusing on a specific input element when a condition is met without triggering re-renders.
Top React Hooks Interview Questions & Answers
In this article, you will learn React Hooks interview questions and answers that are most frequently asked in interviews. Before proceeding to learn React Hooks interview questions and answers, first learn the complete React Hooks.
React hooks are functions that enable functional components to use state and lifecycle features that were previously only available in class components. Hooks provide functions like useState, useEffect, useContext, etc., that allow you to “hook into” React features from functional components.