check_chr | R Documentation |
Checks if object is a string (non-missing character scalar with no attributes including names).
check_chr(x, coerce = FALSE, x_name = substitute(x), error = TRUE)
check_string(x, coerce = FALSE, x_name = substitute(x), error = TRUE)
x |
The object to check. |
coerce |
A flag indicating whether to coerce a factor scalar to a string and drop attributes including names. |
x_name |
A string of the name of the object x. |
error |
A flag indicating whether to throw an informative error or immediately generate an informative message if the check fails. |
An invisible copy of x (if it doesn't throw an error).
check_scalar()
check_chr(1, error = FALSE)
check_chr("1", error = FALSE)
check_chr(c("1", "2"), error = FALSE)
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