How to get the name of variable in NSE with dplyr

user_10090476 0
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So I've found many times various different ways to achieve this, but as of the past year or so there have been changes to the way dplyr handles non standard evaluation. Essentially one way to achieve this is as follows:

require("dplyr")
test <- function(var){
  mtcars %>% select({{var}})
  print(quo_name(enquo(var)))
}

test(wt)
#> [1] "wt"

Is there a more direct way to achieve this as of 2021? I could have sworn there was something much simpler.

non-standard-evaluation dplyr variable-names r
2 Answers

Use ensym() from rlang:

require("dplyr")
require("rlang")
test <- function(var){
    mtcars %>% select({{var}})
    print(ensym(var))
}

test(wt)
#>wt

as.character(test(wt))
#>wt
#>[1] "wt"
user_136379520

We can use deparse/substitute in base R

test <- function(var) deparse(substitute(var))

test(wt)
#[1] "wt"
user_37322710
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