Wow so blind this morning :D NVM me then :D

That is completely correct. The reason to return the list is so you can do assignments to it like
WWallpapers= Addword(list,bla)
Will add in ddescription.will add more about chainability. Thank you

Giving more thought about this.

on number 1: do you mean as a solution setup so they just fill in the blanks?

I think its better that you get to build your own function.

1. Okey.
2. Sure I can add more test cases.
3. Yes I could do that. But the idea was just to append to a global array. But thinking about it I might evolve it to that.

Thanks for the input this is my first kata :-)

More information in description would be nice, because I was in the assumption of making a function that will add a value.
So I got lots of errors because this only wants you to add to a array by itself.

Or build more testcases say that everyone either just add a element by itself and people can make functions thats named like "addValue",

I think this assignment would be better if you add a random word and not just "codewars". So you put in a word and then add it to a array.

Created a kata to explane please upvote if you like it: http://www.codewars.com/kata/appending-to-array

Hello! I just did this test, I have no idea how these test things work really, but i wrote:

Test.assertEquals([2,4,6],[2,4,6])
and got the error:
"Test Failed: Expected: [2,4,6], instead got: [2,4,6]"

I did this test to just test it out how it worked. I assume that in this: "Test.assertEquals(actual, expected, [optional] message)"
the actual is the part you send into the function and expected is the thing that is expected so.

So error in test?

Edit: I completed this with my solution but test case still dosent work.