@ameenj You used a lot of loop. Thats why it has failed. Try to store str2 chracters in an object. I am not saying more.
I described my code in previous reply.

@hobovsky yes. I faced it yesterday. By the way it is very hard to get some solution by waching the long test. I only see the medium and short tests.

Really awesome kata, made me to think in different approaches, learned a lot related to performace when using nested loops and methods containing hidden loops and I have cracked it finally.

@ameenj: since your approach sound like a valid solution, I am going to hide your post as a spoiler.

@mmehedihasan05: you can use console.log(), but there is a limit of how much Codewars allows you to print to console: https://docs.codewars.com/training/troubleshooting#maxbuffer

I used Console.log to see the testcases. But it says "Max Buffer Size Reached". After that I removed console.log() the the code worked fine. So don't use console.log()

beautiful but unnecessary loops

thanks buddy. 1 min of reading your comment and I solved this kata.

I don't like to invalidate existing solutions unless it is absolutely necessary. We don't need to invalidate anything here: It is enough to adjust the test code.

I personally care much more about a kata expecting incorrect results that not invalidating old solutions.

This is not 6 kata. This should be 7 or 8 kata.

Thank you so much for your explanation. I was doing Total Set instead of comparison and getting errors.