How Swiss tables work in Go built-in map

Go 1.24 replaced its map implementation with a design based on Swiss Tables, improving upon the previous runtime implementation. The new design uses a pointer to an internal Map structure that tracks metadata like the number of used entries and a unique seed value, which ensures different maps distribute the same keys differently for security and performance reasons. Maps in Go are O(1) for length operations because the entry count is stored directly, and the storage is organized into groups that scale based on the number of key-value pairs being held.