Difference Between two numbers without positive or negative in Ruby

Question

I want to find the difference between two numbers (positive integers) without returning any positive or negative sign.

Just like

Diff(2,5) => 3
Diff(5,2) => 3.

And Not

(2 - 5) => -3

Answer 1

You should simply return absolute value:

def diff(a, b)
  (a - b).abs
end

diff(2, 5)
# => 3