Literals And Operators

# vibe: 0.2

def add_numbers(a, b)
  a + b
end

def combine_strings(first, second)
  first + " " + second
end

def negate(value)
  -value
end

def truth_table(flag)
  if flag
    true
  else
    false
  end
end

def mix_literals
  {
    answer: 42,
    ratio: 3.75,
    quote: "keep going",
    flags: [true, false, nil]
  }
end

def run
  {
    add: add_numbers(10, 25),
    combine: combine_strings("hello", "world"),
    negate: negate(7),
    truth: truth_table(true),
    literals: mix_literals
  }
end