pretext

You can perform DOM-free text measurement and layout using pure arithmetic and canvas calculations. This approach avoids layout reflow entirely, enabling faster text height prediction and dynamic UI component sizing without browser overhead.

Canvas text measurement supports multilingual layout for all major languages, including CJK, Arabic, and Thai. It handles complex text rendering requirements without relying on DOM operations, ensuring accurate layout across diverse character sets.

You can calculate virtualized list row sizing using pure JavaScript text measurement functions. By predicting text height based on font properties and maximum width, you determine row dimensions efficiently without triggering DOM layout reflow.

You can render measured text to SVG, Canvas, and server-side environments. The measurement functions provide layout coordinates that support custom rendering across multiple platforms, enabling flexible text output beyond standard DOM elements.

The best way to handle AI-driven UI text layout is through pure JavaScript measurement functions that bypass DOM reflow. This provides accurate text height prediction and width calculation, ensuring high-performance document processing for AI applications.

Yes, you need @chenglou/pretext installed to access the core text measurement and layout functions. This dependency provides the arithmetic calculations required to compute text dimensions without relying on DOM layout operations.