React Hooks Explained: useState, useEffect, useContext, and useRef

React Hooks transformed modern React development by enabling state and side effect management directly inside functional components, eliminating the need for class components. Before Hooks, developers faced challenges such as complex lifecycle methods, confusing 'this' bindings, and deeply nested component structures from Higher-Order Components. Core Hooks include useState for local state, useEffect for side effects like API calls and subscriptions, and useContext for accessing shared values across a component tree without prop-drilling. The useRef Hook allows developers to persist mutable values across renders and interact directly with DOM elements without triggering re-renders. Together, these Hooks make React code cleaner, easier to test, and simpler to maintain.