Why use pretext.js (pretextjs) over getBoundingClientRect or DOM measurement? Learn how this zero-dependency JavaScript text measurement library avoids layout thrashing and calculates text height 500x faster without DOM reflow.
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.