How to use

min

function

in

Array

require('js-combinatorics').power(input)
  .filter(a => a.reduce((r, v) => r + +v, 0) === 150)
  .reduce((r, v) => {
    r.push(v)
    r.min = !r.min || (v.length < r.min) ? v.length : r.min
    return r
  }, [])
  .filter((v, k, a) => v.length === a.min)