interfacer (version 0.3.3)

check_single: Checks a set of variables are all of length one

Description

Checks a set of variables are all of length one

Usage

check_single(
  ...,
  .message = "`{param}` is not length one: ({err}).",
  .env = rlang::caller_env()
)

Value

nothing. called for side effects. throws error if not all variables can be coerced.

Arguments

...

a list of symbols

.message

a glue specification containing {param} as the name of the parameter and {err} the cause of the error

.env

the environment to check (defaults to calling environment)

Examples

a = 1
b = "Hello"
g = NA
check_single(a,b,g)

c= c(1,2,3)
d=list(a,b)
try(check_single(c,d,missing))