Add expectations to a parsons problem.

Add expectations to a parsons problem.

pass_if(f, message = NULL)

fail_if(f, message = "Incorrect")

message_if(f)

contains_all(x, ...)

contains_any(x, ...)

Arguments

f	One of: A character vector, indicating an exact match A function of the function function(x){...} that evaluates to TRUE or FALSE A function of the form ~ ., as used by the tidy evaluation, e.g. in purrr::map
message	Message to display if fun evaluates to TRUE
x	Answer to test
...	Combined into an answer list