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a guest Apr 18th, 2019 74 Never
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  1. A hash table (hash map) is a data structure used to implement an associative array, a structure that can map keys to values.
  2.  In JavaScript we don’t have any built-in hash table.
  3.  While many programming languages support associative arrays (hash tables or arrays with named indexes, JavaScript does not. In JavaScript arrays use numbered indexes.
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