https://www.infoq.com InfoQ JavaScript Libraries News feed https://www.infoq.com/news/2026/04/pretext-js-120fps-text-layout/?utm_campaign=infoq_content&utm_source=infoq&utm_medium=feed&utm_term=JavaScript+Libraries-news <img src="https://res.infoq.com/news/2026/04/pretext-js-120fps-text-layout/en/headerimage/generatedHeaderImage-1776650733551.jpg"/><p>Cheng Lou, a Midjourney engineer, recently released Pretext, a 15KB open-source TypeScript library that measures and lays out text without browser layout reflows, enabling advanced UX/UI patterns like infinite lists, masonry layouts, and scroll position anchoring to run at 60-120 fps. Pretext was built using an AI loop that reverse-engineered the DOM’s layout calculations.</p> <i>By Bruno Couriol</i> JavaScript Libraries Web Development TypeScript Development news Mon, 20 Apr 2026 12:59:00 GMT https://www.infoq.com/news/2026/04/pretext-js-120fps-text-layout/?utm_campaign=infoq_content&utm_source=infoq&utm_medium=feed&utm_term=JavaScript+Libraries-news Bruno Couriol 2026-04-20T12:59:00Z /news/2026/04/pretext-js-120fps-text-layout/en