Hash tables or hash maps is a fundamental element in (parent:: coding).
Hash tables are made with Hash Functions. By converting the input search-item into an index number using a Hash Algorithm
Example
int index = (input-string, max-hash) => { for(let i=0; i<input-string.length; i++) { //Turn each letter into a number and add them to one variable to get unique number (hashing algorithm) int num += input-string.charCodeAt(i); } return index;}