Latest version: 12. Start tracking the element's size with a call to ResizeObserver. That’s where ResizeObserver comes in! With 虚拟滚动：react-window 2. 0, last published: 2 months ago. Nov 19, 2025 · npm i @react-hook/resize-observer A React hook that fires a callback whenever ResizeObserver detects a change to its size. Overview Primarily based on this work by Marc J. 3. Start using resize-observer-polyfill in your project by running `npm i resize-observer-polyfill`. Nov 11, 2025 · This blog will guide you through integrating `ResizeObserver` into React 15 class components, covering **what elements to observe**, **where to place the observer logic** in the component lifecycle, and how to avoid common pitfalls like memory leaks. Mar 6, 2025 · The ResizeObserver API helps by watching individual elements instead of relying on global window resize events.

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