Basic Operations with Syntax

Get:

Used to search a key inside the hash table and return the value that is associated with that key.

Syntax:

// function inside hashtable class to 
// access a value using its key
get(key) {
   const target = this._setKey(key);
   return this.table[target];
}

Insert:

Used to insert a new key-value pair inside the hash table.

Syntax:

// function to insert a value in the 
// hash table using setKey function
insert(value) {
   const index = this._setKey(value);
   this.table[index] = value;
   this.size++;
}

Search:

Used to search for a value.

Syntax:

// search a value (by getting its 
// key using setKey function)
search(value){
   const index = this._setKey(value);
   if(this.table[index]==value)
      console.log("The value is found at index : ",index);
   else
     console.log("Not found");
}

Delete:

Used in order to delete a particular key-value pair from the hash table.

Syntax:

// function to delete a key from the hashtable 
delete (key) {
   const index = this._setKey(key);
   if (this.table[index]) {
       this.table[index] = [];
       this.size--;
       return true;
   } else {
       return false;
   }
}

Hashing is a popular technique used for storing and retrieving data as fast as possible. The main reason behind using hashing is that it performs insertion, deletion, searching, and other operations