How to select all list items at a specific nested Level?

Question

Or in another way: how can I use the operator [[ in a nested list?

You can consider this as the next question on this

but obviously, I just get the second element of all list items in the first level.

EDIT: I found the following with extract respectivel ?"[[" , But still can't wrap it around: "[[ can be applied recursively to lists, so that if the single index i is a vector of length p, alist[[i]] is equivalent to alist[[i1]]...[[ip]] providing all but the final indexing results in a list."

EDIT: Don't want to end up with such nesting loops.

 o <- list() i=1 for (i in 1:2){ o[[i]] <- mylist[[c(i,1,1,1)]] } 

Answer 1

I found the answer in the meantime. I can’t say that I did it myself. This gives a detailed explanation of how to use another (complex) recursive function to linearize the entire nested wad list.

What's really nice about Akhil S. Behl's solution: it deals with the fact that data.frames are also lists, and recursion can stop in front of data.frames. It turned out that this was one of my main problems.