What is the goal that you want to achieve? Why do you want to avoid using an if-else?

Dirk Herrmann‭

The goal I want to achieve is an even simpler code for the exact same purpose (if it's possible) because I misunderstand the current code so perhaps there is a step back by a simpler code.

If it's not possible than I would have to expand my knowledge on for...of loops and why would such a loop come in an else for a pretty much straight forward code (change X in Y).

Perhaps you could rephrase the question to "how this recursive function works", because that seems to be the main issue (once you understand this, the else and for become just minor details, IMO)

hkotsubo‭ thanks, I've rephrased the question and made the else issue minor instead of major (it is still important for me for general know to knowledge if one can get rid of this specific else).

Just for my understanding: Are you in principle familiar with the concept of recursion and you only want to understand why in this case it works with the given code? Or is the concept of recursion as such new to you?

Dirk Herrmann‭ the concept of recursion isn't new to me, I know it from Bash such as when changing permissions to a directory and all directories in it of any level; or, from JavaScript as a function which calls itself.

My problem here is with the syntax of this particular code which I find a bit confusing; perhaps it could be simplified; the main or only thing which interrupts me to understand the code is this very particular else statement; for me, it's not as clear as:

if (myValue = x) {
     do y;
} else {
 do z;
}

I prefer to try to do the same thing just without the particular else I mention.