bind_rows .id with NA values in names of list

[muschellij2]

Description: If there are NA values in the names of a list, dplyr::bind_rows(.id) and therefore purrr::map_dfr(.id) (though deprecated) have an unusual id column that has no warning/message/error:

values = lapply(1:5, function(x) mtcars)
names(values) = paste0("id_", 1:5)
df = dplyr::bind_rows(values, .id = "id")
unique(df$id)
#> [1] "id_1" "id_2" "id_3" "id_4" "id_5"

names(values)[c(3, 5)] = NA_character_
df = dplyr::bind_rows(values, .id = "id")
unique(df$id)
#> [1] "1" "2" "3" "4" "5"

^{Created on 2024-11-01 with reprex v2.1.1}

Session info

sessioninfo::session_info()
#> ─ Session info ───────────────────────────────────────────────────────────────
#>  setting  value
#>  version  R version 4.4.0 (2024-04-24)
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#>  ctype    en_US.UTF-8
#>  tz       America/New_York
#>  date     2024-11-01
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#> 
#> ─ Packages ───────────────────────────────────────────────────────────────────
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#>  [1] /Library/Frameworks/R.framework/Versions/4.4-x86_64/Resources/library
#> 
#> ──────────────────────────────────────────────────────────────────────────────