You Might Not Need useEffect

Anymore in React 19

React’s

useEffect

hook has been one of the most widely used hooks since the introduction of Hooks. It provides a way to synchronize React components with external systems, making it useful for handling API requests, subscriptions, browser events, third-party libraries, and other side effects.

However, over time,

useEffect

has also become one of the most frequently misused hooks in React applications.

Developers often use it to derive state, synchronize multiple state variables, handle user interactions, and fetch data that could be handled more effectively through other React features.

Consider a common scenario: a component maintains a list of products, calculates the total number of products, and updates another state variable whenever the list changes.…