expr_is_a {swirl} | R Documentation |
class
.Returns TRUE
if e$expr
is of the given class
.
expr_is_a(class)
class |
expected |
TRUE
or FALSE
Other AnswerTests: AnswerTests
,
any_of_exprs
,
calculates_same_value
,
expr_creates_var
,
expr_identical_to
,
expr_uses_func
,
func_of_newvar_equals
,
omnitest
, val_has_length
,
val_matches
, var_is_a
## Not run: # Test if the expression entered by a user is an assignment # expr_is_a('<-') ## End(Not run)