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How Go Maps Work: From Buckets to Swiss Tables

calendar_today October 1, 2026 person Ilia Ivankin domain dzone

Hey Mates! “How does a map work in Go?” is one of my favorite interview questions. It sounds simple, but it opens up a conversation about hashing, collisions, memory layout, and why two implementations with the same average O(1) lookup complexity can behave quite differently.

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