Metrick

Metrick is a Babel-powered unit conversion library (v0.2.0) that leverages the ES7 function bind syntax (::) for human-readable unit expressions. It supports duration (milliseconds, seconds, minutes, hours, years) and data (bits, bytes, kilobytes, megabytes, gigabytes, etc.) conversions with explicit (unit::unit.in(target)) and implicit (number::unit) syntax. The library requires the Babel plugin transform-function-bind and is designed for Node.js and browser environments. Alternatives like js-quantities or convert-units offer more units or simpler syntax but lack the syntactic sugar of the bind operator. Release cadence is low; last release was 2017.