Function wrapper

src/plugin/duration/index.js:31–32

(input, instance, unit)

let $u

const wrapper = (input, instance, unit) =>
  new Duration(input, unit, instance.$l) // eslint-disable-line no-use-before-define

const prettyUnit = unit => `${$u.p(unit)}s`
const isNegative = number => number < 0