mathjs/lib/type/unit/index.js

Math.js is an extensive math library for JavaScript and Node.js. It features a flexible expression parser and offers an integrated solution to work with numbers, big numbers, complex numbers, units, and matrices.

module.exports = [
  // type
  require('./Unit'),

  // construction function
  require('./function/unit'),

  // physical constants
  require('./physicalConstants')
];