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lazy_infinite_sequences

🔄 Lazy Infinite Sequences Using Endless Ranges​

Pair endless ranges with Enumerator::Lazy to generate infinite streams without memory blow‑ups. You can filter, map, and then take only what you need.

# First 5 multiples of 3
infinite = (1..).lazy
                .select { |n| n % 3 == 0 }
                .map    { |n| n ** 2 }
                .first(5)

p infinite  # => [9, 36, 81, 144, 225]