Discuss Hashing in detail and some applications?

Hashing is a technique for storing and retrieving data as fast as possible. The main reason behind using hashing is that it gives optimal results as it performs optimal searches.

Applications of Hashing

  • Database Indexing
  • Disk-based data structures.
  • Python, JavaScript hash is used to implement objects.

Real-Time Applications of Hash:

  • Caching mapping for fast access of the data.
  • Password verification.
  • Cryptography

Using Hash Tables

Hash table gives the functionality in which a collection of data is stored in such a way that it is easy to find those items later if required. This makes searching of an element very efficient. It is comparable to an array

Understanding Hash Function

A function that converts a given big phone number to a small practical integer value. The mapped integer value is used as an index in a hash table. A hash function is used to transform a given key into a specific slot index.