Or
lhs %or% rhsEither the result of evaluating lhs, rhs or an error
The function evaluates the expression lhs and if this expression results
in an error, it catches that error and proceeds with evaluating the expression
rhs and returns that result.
Developer Utility Functions:
%notin%(),
arg_name(),
contains_vars(),
convert_dtm_to_dtc(),
extract_vars(),
filter_if(),
friendly_type_of(),
valid_time_units(),
vars2chr()