utilsTypeScript utilities for simulation UIs

Strict, dependency-free, one function per file, built for values refreshed 1 000 times per second.

Search everything

Press Ctrl K and type a name or what you need ("decimals", "rotate", "anchor"). Every function has its own page.

Each page lists the files a function needs and shows its source with a copy button.

Every setting has a default in the signature (en-US, a step of 1, the center anchor), so formatNumber(value) just works.

Place, rotate, flip and scale SVG elements with a list of orders changed at each frame, and draw gauges around them, whatever their groups.

No allocation in hot paths, precomputed tables, and every optimisation measured by a benchmark.

100 % coverage; each page shows the tests of its function and their result.