React useResizeObserver Hook Simplifies Tracking Element Size Changes

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Browsers offer a native ResizeObserver API that watches individual elements for size changes, unlike window.resize which misses layout shifts caused by sidebars, accordions, or dynamic content. Manually wiring ResizeObserver into React components introduces common pitfalls such as stale callbacks, observer churn from inline option objects, and lifecycle leaks. The useResizeObserver hook from @reactuses/core addresses these issues by accepting flexible targets including refs, plain elements, or getter functions, and deep-comparing options to avoid unnecessary observer reconnections. The callback receives the native ResizeObserverEntry array, giving developers access to contentRect, borderBoxSize, and contentBoxSize without a simplified wrapper. The hook also returns a stop function for early disconnection and handles cleanup automatically on component unmount.

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Qilin Ransomware Group Exploits Palo Alto PAN-OS VPN Auth Bypass Flaw

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OWASP Flags Insecure Agent-to-Agent Communication as Critical AI Security Risk

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