Lecture 10 Quiz

[seaerchin]

What's wrong

In lecture 10, the question

Which of these values is not in weak head normal form?

1. map
2. f 1 : map f (2 : [])
3. Just (not False)
4. (\x -> x) True

does not have an answer attached to it (unable to click)

Suggested Fix

Add a :active css class onto the <li> elements

[opqdonut]

thanks for spotting that!

[seaerchin]

@opqdonut My pleasure! also have a follow up question, the materials for part 10 state that An expression is in WHNF if it can’t be evaluated on its top level. but then proceeds to give the examples of a constant. Why can't constants be evaluated?