In some languages on Codewars (Python is the problem here, I think) it is possible to mutate the array that is passed as input. That will guarantee that the test will fail.
Generally it is not good to mutate the input to a function, unless that is the expected behaviour.
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What do you mean with "Don't mutate the input"? The variable that is given isn't changed, right?
In some languages on Codewars (Python is the problem here, I think) it is possible to mutate the array that is passed as input. That will guarantee that the test will fail.
Generally it is not good to mutate the input to a function, unless that is the expected behaviour.