JohnnyDiabetes, you make a good point. If I made this today I'd do a few things differently, one of which would be to create a new array and return that.

Just a heads up:

Kata directions: "Do not mutate the input array/list." This solution mutates the input array.

Thanks!!

You need to return the answer, not print it.

https://docs.codewars.com/training/training-example

Anyone had this problem?

Unexpected exception raised.
Traceback (most recent call last):
File "/workspace/default/.venv/lib/python3.11/site-packages/codewars_test/test_framework.py", line 112, in wrapper
func()
File "/workspace/default/tests.py", line 10, in basic_test_cases
test.assert_approx_equals(find_average([1, 2]), 1.5, margin=1e-3, message="Failed for [1, 2]")
File "/workspace/default/.venv/lib/python3.11/site-packages/codewars_test/test_framework.py", line 85, in assert_approx_equals
div = max(abs(actual), abs(expected), 1)
^^^^^^^^^^^
TypeError: bad operand type for abs(): 'NoneType'

The *= is a multiplication assignment and can be read the same away as array[i] = array[i] * -1. It is a shorthand solution that often gets used when solving problems.

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Multiplication_assignment

me to

Hi begginner here, how does it works? I mean, I wrote the same thinks but how could it works on the negative numbers? Because the positine ones get to negatives thanks to * -1, I get it; but does it work for the negatives one? Maybe it's the "=" that's I don't understand here. Sorry for my bad english, hope someone will understand my question.

Oh I never saw that one, thanks you for reply !

Hi! This is a shorter way of accessing the .charAt() method on a string. Take a look at the docs here: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String#character_access

Hi! Beginner here, I thought [] was for the array only. Why, can we use [] for the string "name" here? Sorry for my bad english.

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