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Collections are a way for you to organize kata so that you can create your own training routines. Every collection you create is public and automatically sharable with other warriors. After you have added a few kata to a collection you and others can train on the kata contained within the collection.
Get started now by creating a new collection.
Taking a pen and a piece of paper, I rewrote one of these tests and started counting manually. I figured that the test had the correct answers, which meant that the error was somewhere in my code. It turned out that my function, which searches for similar characters for two strings, searches for unique similar characters. For example, check whether your code works correctly with the arguments 'aab' and 'aaa'.
Во-первых, комменты лучше писать на английском, так больше вероятность, что кто-то Вам ответит :)
Во-вторых, я так понимаю, Вы решали эту задачу на JavaScript. Есть разница между строгим и нестрогим сравнением. Для данной задачи нам необходимо именно строгое.