Write a JavaScript function on the following: a.) Create a function to find the most frequent item of an array. Example: array = [3,5,6,7,'b', 'b', 'c',1,2,3,'c', 'a',3,'b', 'c',3,] = Most Frequent is 3. = - 1 7 1 7 2 1 1 1 b.) Create a function that will print out the row and the elements of each row. Function should be capable of accepting multiple nested arrays and multiple elements per array. [[1, 2, 1, 24], [8, 11, 9, 4], [7, 0, 7, 27], [7, 4, 28, 14], [3, 10, 26, 7]] result: row 0 - 1 2 1 24 row 1-8 11 9 4 row 2 - 707 27 row 3 - 7 4 28 14 row 4 - 3 10 26 7