Fibonacci sequence

# title: Fibonacci sequence
# source: https://rosettacode.org/wiki/Fibonacci_sequence
# category: Rosetta Code
# difficulty: Intro
# summary: Produce the opening terms of the Fibonacci sequence iteratively.
# tags: popular, math, loops, arrays

def fibonacci_terms(count)
  values = []
  a = 0
  b = 1
  produced = 0

  while produced < count
    values = values.push(a)
    next_value = a + b
    a = b
    b = next_value
    produced = produced + 1
  end

  values
end

def run
  fibonacci_terms(15)
end