Is there an equivalent to `Array::sample` for hashes?

Question

I\'m looking to extract n random key-value pairs from a hash.

Answer 1

If your sample has only one element, you could use this:

sample = h.keys.sample
h.select { |k,v| k == sample }

Or if your sample contains more than one element, use this:

n = 2
sample = h.keys.sample(n)
h.select { |k,v| sample.include?(k) }