@jean.pumarol, your solution is inefficient.

I know that you posted this some time ago. I had the same problem with memory overflow. I refactored my code and now I dont have that problem. But now I have an exit code, because of execution timeout. Did you finally solved it?

++++++function whoIsNext(names, r){
++++++let num = 0
++++++while((names.length + num) < r) {
++++++let name = names.shift()
++++++names.push(name, name)
++++++num += 1
++++++}
++++++return names[r-num-1]
++++++}

It seems it's a memory overflow problem. There are tests with long values.

What a strange error message, I've just tested it with a couple of solutions and it works, try sharing your code in a post marked as having spoiler content so we can help you.

I believe this kata is broken for javascript.

I've tried two solutions that work with each test passing. Yet I get an error in red in both cases:

Log
<--- Last few GCs --->

3428 ms: Mark-sweep 1013.9 (1029.5) -> 610.6 (625.1) MB, 240.3 / 0.0 ms [allocation failure] [GC in old space requested].
3626 ms: Mark-sweep 610.6 (625.1) -> 610.6 (625.1) MB, 197.5 / 0.0 ms [allocation failure] [GC in old space requested].
3821 ms: Mark-sweep 610.6 (625.1) -> 610.6 (618.1) MB, 195.1 / 0.0 ms [last resort gc].
4016 ms: Mark-sweep 610.6 (618.1) -> 610.6 (618.1) MB, 194.9 / 0.0 ms [last resort gc].

<--- JS stacktrace --->

==== JS stack trace =========================================

Security context: 0x3f47d93cf781
2: whoIsNext [/home/codewarrior/index.js:~5] [pc=0x3d098205ff53] (this=0x235e1eecb801 ,names=0x313af0c91899 <JS Array[79300100]>,r=1000000000)
3: /* anonymous / [/home/codewarrior/index.js:65] [pc=0x3d098205c09c] (this=0x235e1eecb801 )
4: / anonymous */ [/runner/frameworks/javascript/cw-2.js:159] [pc=0x3d098205a1bc] (this=0x235e1eecb801 <JS Glob...
STDERR: