Assert that an object is a list.
Usage
assertList(
x,
length = NULL,
na = FALSE,
null = FALSE,
unique = FALSE,
named = FALSE,
class = NULL,
call = parent.frame(),
msg = NULL
)
Arguments
- x
Variable to check.
- length
Required length. If
NULL
length is not checked.- na
Whether it can contain NA values.
- null
Whether it can be NULL.
- unique
Whether it has to contain unique elements.
- named
Whether it has to be named.
- class
Class that the elements must have.
- call
Call argument that will be passed to
cli
error message.- msg
Custom error message.