Checks if environment using
is.environment(x)
Value
The chk_
function throws an informative error if the test fails or
returns the original object if successful so it can used in pipes.
The vld_
function returns a flag indicating whether the test was met.
See also
Other chk_typeof:
chk_character()
,
chk_character_or_factor()
,
chk_count()
,
chk_double()
,
chk_factor()
,
chk_integer()
,
chk_list()
,
chk_logical()
Examples
# chk_environment
chk_environment(.GlobalEnv)
try(chk_environment(1))
#> Error in eval(expr, envir) : `1` must be an environment.
# vld_environment
vld_environment(1)
#> [1] FALSE
vld_environment(list(1))
#> [1] FALSE
vld_environment(.GlobalEnv)
#> [1] TRUE
vld_environment(environment())
#> [1] TRUE