bookis

{
  "users": [{
    "id": 1
  }, {
    "id": 2
  }, {
    "id": 3
  }]
}

bookis

bookis

class Transaction
  attr_accessor :amount, :success
  
  def initialize(amount, success)
    @amount  = amount
    @success = success
  end
  
  def success?
    @success

bookis

# method that takes two inputs (an array, a target sum)
# outputs an array of pairs that sum to the target sum
# ([1,2,3,4], 5) => [[1,4], [2,3]]

def sum_pairs(array, target)
  matches = []
  i = 0
  array.each do |first|
    i += 1
    array[i..-1].each do |second|