The third day I typed in the search query "javascript array keys exist" and got a super relevant result

But I must pay tribute, since a week has passed and this page in the issue has lost much in position, now I have it in 4th place
https://yandex.ru/search/?text=javascript%20array%20keys%20exist&lr=193 .
Do you think this is a behavioral factor?Today's screenshot:

Type in the search for any query javascript object, javascript array or javascript [whatever].
What am i talking aboutAnd for some reason I am not surprised, all the sites for Yandex are equal, but some are smoother.