Problem
Write a Python function `sum_list(nums)` that returns the sum of all integers in the input list. If the list is empty, return 0.
Test Cases
[1, 2, 3]→6(basic)[]→0(empty list)[-1, 1, 0]→0(negatives + zero)
Write a Python function `sum_list(nums)` that returns the sum of all integers in the input list. If the list is empty, return 0.
[1, 2, 3]→6(basic)[]→0(empty list)[-1, 1, 0]→0(negatives + zero)