chk_used | R Documentation |
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.
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)
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