is_valid_date_str: Test whether a string is a valid date
Description
Taken from github.com/rmsharp/rmsutilityr
Usage
is_valid_date_str(
date_str,
format = "%d-%m-%Y %H:%M:%S",
optional = FALSE
)
Value
A logical value or NA indicating whether or not the provided
character vector represented a valid date string.
Arguments
date_str
character vector with 0 or more dates
format
character vector of length one. Retained for backward
compatibility; the current implementation validates dates with
anytime() and does not use format.
optional
logical value indicating that NA should be returned
instead of FALSE for strings that are not valid dates.
Defaults to FALSE.