Check ... Used
Checks if is ... used using
length(list(...)) != 0L
chk_used(...) vld_used(...)
... |
Additional arguments. |
The chk_ function throws an informative error if the test fails.
The vld_ function returns a flag indicating whether the test was met.
vld_used: Validate ... Used
Other chk_ellipsis:
chk_unused()
# chk_used
fun <- function(x, ...) {
chk_used(...)
x
}
try(fun(1))
fun(1, 2)
# vld_used
fun <- function(x, ...) {
vld_used(...)
}
fun(1)
fun(1, 2)Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.