The hash table is data structure and it’s a way to make a link between the data values. The values are usually define by a key value pairs where they are stocked in a tuple.
A hash table is basically an array that links a key to a specific data value
This data structure has many names: dictionnary, map or hash and it’s an object, we use hash function to turn the keys into integers , this hash function need to know the length of the array used.
Hashing is aprocess of creating a unique entities. This is use a predefined function that, given the same input that we will always produce.
Hash tables is an excellent way to storing paired data. The uses of key-value pairs isan easy way to connecting two fields.