Python Coding challenge - Day 156 | What is the output of the following Python Code?

 

Code:

def outer_function(x):

    def inner_function(y):

        return x + y

    return inner_function

result = outer_function(5)(3)

print(result)

Solution and Explanation: 

This code defines a Python function outer_function that takes a parameter x. Inside outer_function, there's another function defined called inner_function, which takes a parameter y.

inner_function simply returns the sum of x and y.

outer_function itself returns inner_function, effectively creating a closure where inner_function retains access to the x value passed to outer_function.

The last three lines of the code demonstrate how to use this function.

outer_function(5) is called, which returns inner_function where x is now set to 5.

Then, (3) is passed to this returned inner_function, effectively adding 3 to the x value set previously (5), resulting in 8.

Finally, the result, 8, is printed.

So, the output of this code would be: 8