Python Coding challenge - Day 280| What is the output of the following Python Code?

 

Explanation:

1. Defining the Function

def square(n): 

    return n ** 2

A function named square is defined. It takes one argument, n.

The function returns the square of n (i.e., n ** 2).

2. Using map()

result = map(square, [1, 2, 3])

The map() function applies a given function (here, square) to each item in an iterable (here, the list [1, 2, 3]).

The square function is called for each element in the list:

For 1: square(1) → 1 ** 2 → 1

For 2: square(2) → 2 ** 2 → 4

For 3: square(3) → 3 ** 2 → 9

The map() function returns a map object, which is an iterator that contains the results (1, 4, 9).

3. Converting to a List

print(list(result))

The map object is converted into a list using list(result), which materializes the results of the map() operation.

Final Output:

[1, 4, 9]