CODEWITHSUNDEEP
rdplyrtidyversepurrrmagrittr
kmace
kmace

Reputation: 2044

Trying to understand what the {} does when placed after the pipe operator (%>%)

In this tutorial, there is the following code:

library(repurrrsive)
library(listviewer)
library(purrr)
library(tibble)
got_chars %>% {
  tibble(
       name = map_chr(., "name"),
    culture = map_chr(., "culture"),
     gender = map_chr(., "gender"),       
         id = map_int(., "id"),
       born = map_chr(., "born"),
      alive = map_lgl(., "alive")
  )
}

And the explanation provided says: "The dot . above is the placeholder for the primary input: got_chars in this case. The curly braces {} surrounding the tibble() call prevent got_chars from being passed in as the first argument of tibble()"

I'd like an explanation to what the {} are doing, and is this a general r property, or one exclusive to purrr? Is this similar to defining a nameless function such as function(x){ x + 1}?

Upvotes: 2

Views: 880

Answers (0)

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