반응형 JavaScript9 A Practical Guide to useTransition in React 19 1. Introduction Modern user interfaces should feel responsive, even when dealing with complex, expensive operations such as heavy data processing, filtering large lists, or navigating through extensive UI updates. React’s useTransition hook, introduced in React 18 and enhanced further in React 19, makes managing these heavy UI updates easier by distinguishing between urgent updates and transitio.. 2025. 3. 9. A Practical Guide to useSyncExternalStore in React 19 1. Introduction Managing external state sources (like Redux stores, custom event emitters, or subscriptions to external data streams) in React components can be challenging. Ensuring UI stays synchronized efficiently, without unnecessary re-renders or stale data, often requires complex logic. useSyncExternalStore, introduced in React 18 and enhanced further in React 19, simplifies this process s.. 2025. 3. 9. A Practical Guide to useMemo in React 19 1. Introduction In React development, you’ll often encounter expensive computations or large data transformations that can slow down performance if re-run on every render. useMemo is a powerful React Hook that caches (memoizes) the result of these computations, ensuring they only re-run when necessary. In React 19, useMemo remains an important tool for optimizing rendering and improving user exp.. 2025. 3. 8. A Practical Guide to useInsertionEffect in React 19 1. Introduction When React introduced concurrent rendering in React 18, new hooks emerged to handle different stages of a component’s lifecycle in the rendering pipeline. One such hook is useInsertionEffect, which lets you perform effects synchronously before DOM mutations occur.Why does this matter? In many cases, you want to inject or modify styles (or perform other side effects) before the br.. 2025. 3. 8. 이전 1 2 3 다음 반응형
