Combine pretext.js with virtualized lists — pre-measure dynamic row heights for smooth, jank-free virtual scrolling of text-heavy content. A pretextjs alternative to CellMeasurer for variable text height.
This page is part of Learn Pretext — interactive tutorials and live demos for pretext.js, the zero-dependency JavaScript text measurement library by Cheng Lou. New to the library? Start with the pretext.js tutorial, read why pretext exists, or browse the API reference. Enable JavaScript to run the live interactive demo and view its annotated source code.