powered by
Checks if is a list using
is.list(x)
chk_list(x, x_name = NULL)vld_list(x)
vld_list(x)
The chk_ function throws an informative error if the test fails or returns the original object if successful so it can used in pipes.
chk_
The vld_ function returns a flag indicating whether the test was met.
vld_
The object to check.
A string of the name of object x or NULL.
vld_list(): Validate List
vld_list()
Other chk_typeof: chk_character(), chk_character_or_factor(), chk_count(), chk_double(), chk_environment(), chk_factor(), chk_integer(), chk_logical()
chk_character()
chk_character_or_factor()
chk_count()
chk_double()
chk_environment()
chk_factor()
chk_integer()
chk_logical()
# chk_list chk_list(list()) try(chk_list(1)) # vld_list vld_list(list()) vld_list(list(x = 1)) vld_list(mtcars) vld_list(1) vld_list(NULL)
Run the code above in your browser using DataLab