Sample an array with seed value to get consistent result

Question

I am sampling several arrays and would like to add a seed value to get a consistent result every time its run, now and in the future.

My example:

constant_seed_value = 123456789
["a","b","c"].sample(seed: constant_seed_value ) should return "a" when run every time.

Answer 1

Just pass a Random.new with your seed to sample:

%w[a b c].sample(1, random: Random.new(123456789))
#=> ["a"]

See Array#sample and Random