sortNumeric = (target, keys...) ->
  Ember.computed.sort target, (a, b) ->
    [int_a, int_b] = [parseInt(a.get(keys[0])), parseInt(b.get(keys[0]))]
    if  int_a > int_b
      1
    else if int_a < int_b
      -1
    else
      0

export { sortNumeric }
export default sortNumeric