Remove empty elements from list with character(0)

Question

How can I remove empty elements from a list that contain zero length pairlist as character(0), integer(0) etc...

list2
# $`hsa:7476         


        

Answer 1

For the sake of completeness, the purrr package from the popular tidyverse has some useful functions for working with lists - compact (introduction) does the trick, too, and works fine with magrittr's %>% pipes:

l <- list(1:3, "foo", character(0), integer(0))
library(purrr)
compact(l)
# [[1]]
# [1] 1 2 3
#
# [[2]]
# [1] "foo"

or

list(1:3, "foo", character(0), integer(0)) %>% compact