# HashTable
It is a way to order data in memory using the hash function and key.

Hash(x) - is a hash function, x is a key.
P(x) - is a probe function to fix when same index found - used only in Open Addressing.

## Same key fix options

1. Seperate Chaining
    Using one of data structure to add more elements in same key - here we will use linked list.


2. Open Addressing [*NOT PROVIDED IN THE SOLUTION*]

    Open addressing searches for free index in array and fill it.
    There are 3 options available here.

    a. Linear probing 
        for ex: *ax + b* (a & b are constants)

    b. Quadratic probing
        for ex: *ax<sup>2</sup> + bx + c* (a, b, c are constants)   

    c. Double hashing
        for ex: *h1(x) + h2(y)* (h1 & h2 are hashing on key and result respectively)


## Ways to eliminate cycles.

Maintain *Greatest Common Denominator(N, a) = 1*
where N - total elements, a - constant in h(x) = ax and Prime Numbers.

*Load Factor  = a / N*
when load factor reaches its limit, hastable needs to be resized to next set of prime numbers and values should get refilled to maintain order.


## Installation
`npm i @sivarajans/hash-table`
Note - only seperate chaining available in this module


Hash table - Seperate chaining, Open addressing (linear probing, quadratic probing, double hashing). 

@sivarajans/hash-table

Hash table - Seperate chaining, Open addressing (linear probing, quadratic probing, double hashing)

sivarajans

hash-table

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@sivarajans/hash-table

HashTable

Same key fix options

Ways to eliminate cycles.

Installation

Keywords

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@sivarajans/hash-table

HashTable

Same key fix options

Ways to eliminate cycles.

Installation

Keywords

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