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A hash table is a data structure that implements an associative array abstract data type, a structure that can map keys to values. A hash table uses a hash function to compute an index into an array of slots, from which the desired value can be found.
Uses a hash function to compute indices for keys.
Allows quick insertion, deletion, and search operations.
Handles collisions through various techniques (e.g., chaining).
Performance depends on the quality of the hash function.
Hash tables are essential for efficient data retrieval in a wide range of applications.