Can someone please explain whats going on in this code Can comments be added please?   class twoDarray(list):              def __init__(self, array):         try:             if(not isinstance(array[0],list)):                 raise TypeError             x = len(array[0])             for i in array:                 if len(i)!=x:                     raise KeyError         except TypeError:             print("error Not a 2d array.")             return         except KeyError:             print("error Lists are not of equal size.")             return                  self.array = array               def __str__(self):         return '[' + "\n ".join([str(arr) for arr in self.array]) + ']'          def shape(self):         return (len(self.array), len(self.array[0]))

Step 1: Read your files! You should now have 3 files. Read each of these files, in the order listed below. staticarray.h -- contains the class definition for StaticArray, which makes arrays behave a little more like Python lists O In particular, pay attention to the private variables. Note that the array has been defined with a MAX capacity but that is not the same as having MAX elements. Which variable indicates the actual number of elements in the array? staticarray.cpp -- contains function definitions for StaticArray. Right now, that's just the print() member function. 0 Pay attention to the print() function. How many elements is it printing? main.cpp -- client code to test your staticarray class. Note that the multi-line comment format (/* ... */) has been used to comment out everything in main below the first print statement. As you proceed through the lab, you will need to move the starting comment (/*) to a different location. Other than that, no changes ever need to be made to…

1Code a JavaScript callback function for the Array.map method to ('Yu Yamaguchi') evaluate an array of integersidentify the integers that are Prime numbersreturn the Prime numbers in the new array 2 Code a JavaScript callback function for the Array.reduce method to evaluate an array of integersdetermine the smalles integerreturn the smalles integer Note: if there are identical integers, the function is to return the last one.

Method Details getCountInRange public static int getCountInRange​(int[] array, int lower, int upper) Returns the number of values in the range defined by lower (inclusive) and upper (inclusive) Parameters: array - integer array lower - lower limit upper - upper limit Returns: Number of values found  Throws: java.lang.IllegalArgumentException - if array is null or lower is greater than upper Any error message is fine (e.g., "Invalid parameters(s)")