splitting list into its components and combine to form another list in R

Question

I have list 1:

l1 <- list(letters[1:26])

I have list 2:

l2 <- list(c(1:26))

How would I combine l1 and l2 into a new list l4 with 52 elements: the first 26 elements are the elements of l1 and the next 26 are the elements of l2?

Answer 1

You could use c to combine them

l4 <- c(l1[[1]], l2[[1]])

Or with unlist

l4 <- c(unlist(l1), unlist(l2))

Maybe you want to wrap it in list

l4 <- list(c(l1[[1]], l2[[1]]))