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Minor edits and implementation types (#28835)

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LB
2019-03-23 18:11:26 -04:00
committed by Randell Dawson
parent 8631fa99c4
commit 185cbf1138
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guide/english/computer-science/data-structures/hash-tables/index.md
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@@ -3,11 +3,13 @@ title: Hash Tables
--- ---
## Hash Tables ## Hash Tables
Hash table (or Hash Map) is a data structure that can map keys to values.A hash table uses a hash function to compute an index Hash table (or Hash Map) is a data structure that can map keys to values. A hash table uses a hash function to compute an index
into an array of buckets, from which the desired values can be found.Time complexity of a well defined Hash function can be O(1). into an array of buckets, from which the desired values can be found. Time complexity of a well defined Hash function can be O(1).
A hash table (hash map) is a data structure which 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 buckets or slots, from which the desired value can be found. A hash table (hash map) is a data structure which 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 buckets or slots, from which the desired value can be found.
Depending on the language implementation of hash tables can be given different names. For example, in Python their implementation is called a dictionary.
![an example of a hash table](https://github.com/TomerPacific/fccGuideImages/blob/master/315px-Hash_table_3_1_1_0_1_0_0_SP.svg.png?raw=true) ![an example of a hash table](https://github.com/TomerPacific/fccGuideImages/blob/master/315px-Hash_table_3_1_1_0_1_0_0_SP.svg.png?raw=true)
Some Important properties of Hash Table - Some Important properties of Hash Table -