Python Coding challenge - Day 390| What is the output of the following Python Code?

 Step-by-Step Explanation

1. Importing List from typing

from typing import List

The typing module provides type hints to improve code readability and maintainability.

List[int] indicates that nums should be a list of integers.

2. Defining the Function

def add_numbers(nums: List[int]) -> int:

Function name: add_numbers

Parameter:

nums: List[int] → A list containing integers.

Return type: int → The function is expected to return an integer.

3. Summing the Numbers

return sum(nums)

sum(nums) calculates the sum of all integers in the list.

4. Calling the Function

print(add_numbers([1, 2, 3]))

[1, 2, 3] is passed to add_numbers.

sum([1, 2, 3]) evaluates to 1 + 2 + 3 = 6.

print(6) outputs:

6

Final Output

6