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R package: rlang

rlang provides tools to work with core language features of R and the tidyverse.

expr vs enexpr

library(rlang)

f_expr  <- function(ex) expr  (ex);
f_enexpr<- function(ex) enexpr(ex);

f_expr  (22 + x);
#
#  ex

f_enexpr(22 + x);
#
#  22 + x
Github repository about-r, path: /packages/rlang/expr-vs-enexpr.R

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