code: function drop (n, array) {
    return (n < array.length)
      ? slice(n, array.length, array)
      : []
  }
docs: Slice `n` items from `array` returning the sliced
  elements as a new array.
  
  @param {Int} n How many elements to drop
  @param {Array} array Array to drop from
  @return {Array} New Array with the dropped items