.

Test cases added.

Write some test cases for the user to test against.

Be careful not to modify anything you don't intend to.

I have the same issue, could you please help me with it, if you know an answer? Thanks.

Thanks for sharing! That article shed some light on Ruby programming practices.

https://valve.github.io/blog/2014/07/04/from-object-to-functional-immutability/
The Immutability of Ruby, take a look.

As someone who is learning ruby, why do some solutions omit a return in the function? I see doing so works, but coming from other OOP langages, this seems very...wrong. I've seen this in multiple ruby kata so far. Can someone explain?

I seem to be having trouble with the Test Case. Here's my output with some console.log calls added to find the length of the list passed in:

Testing list with 10 elements
n: 2
xs.length: 10
10
Test Passed: Value == [9,10]
n: 0
xs.length: 10
10
Test Passed: Value == []
n: 2
xs.length: 10
10
Test Passed: Value == [-1,0]
Testing list with more elements
(List of 5559 elements)
n: 26
xs.length: 8326
8326
Test Passed: Value == [5535,5537,5539,5541,5543,5545,5547,5549,5551,5553,5555,5557,5559,5561,5563,5565,5567,5569,5571,5573,5575,5577,5579,5581,5583,5585]
n: 16
xs.length: 8300
8300
16 largest of 5559 elements - Expected: [5555,5557,5559,5561,5563,5565,5567,5569,5571,5573,5575,5577,5579,5581,5583,5585], instead got: [5525,5525,5526,5526,5527,5527,5528,5528,5529,5529,5530,5530,5531,5531,5532,5532]

I'm confused as to why xs.length is different than the number of elements to sort. I didn't include it here, but I've also used console.log to see the value of xs.length and didn't see the Expected values. Is this a bug?