React useMeasure Hook: Measure DOM Elements with ResizeObserver (2026)

<p><em>A complete developer tutorial on measuring, diagnosing, and eliminating Cumulative Layout Shift in React applications using the open-source <code>@page-speed/hooks</code>

<p>My friend Marcos has been writing React for nearly three years. Production dashboards, complex state, the whole thing. One evening, over coffee, hooks came up.</p> <p>"Do you

<h1> React Scroll Effects Without External Libraries </h1> <p>Scroll is the most fundamental user interaction on the web. Progress bars that fill as you read, headers that shrink

<p>You added a <code>useLayoutEffect</code> to measure a tooltip, shipped it, and the next time your Next.js (or Remix, or Gatsby) dev server rendered a page on the server, the