Create a OOP that counts the number of times a particular letter shows up in the word search. Count how many times it came in the string. Use Inheritance.
Examples
letterCounter([
["D", "E", "Y", "H", "A", "D"],
["C", "B", "Z", "Y", "J", "K"],
["D", "B", "C", "A", "M", "N"],
["F", "G", "G", "R", "S", "R"],
["V", "X", "H", "A", "S", "S"]
], "D") ➞ 3
// "D" shows up 3 times: twice in the first row, once in the third row.
letterCounter([
["D", "E", "Y", "H", "A", "D"],
["C", "B", "Z", "Y", "J", "K"],
["D", "B", "C", "A", "M", "N"],
["F", "G", "G", "R", "S", "R"],
["V", "X", "H", "A", "S", "S"]
], "H") ➞ 2
