Transforms don't execute until the consumer pulls. There's no eager evaluation, no hidden buffering. Data flows on-demand from source, through transforms, to the consumer. If you stop iterating, processing stops.
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Thirty years after Pokémon Red and Pokémon Green first launched in Japan, Generation 10 has arrived with island vibes and ocean horizons. But if the immediate internet reaction is any indication, the real waves are being made by one grumpy grass bird, one chaotic fire pom, and one water lizard diva.
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