I didn't think the instructions were clear enough to be honest

I like this one! it's fairly obvious, but I hadn't seen that I could pass an initial value to the reduce function to prevent it breaking if the array passed in was empty.

slightly repetitive

Instructions are incorrect. Random tests prevent it from working in javascript, but when resubmitted with same solution it works.

the solution expected is different to the actual solution

i get the same error, I assume this is an error with the kata?

quite a long winded attempt at an answer but I am unable to pass the final test.

It's quite a long winded attempt at a solution but my current code looks like this:

def power_of_4(number)

your code here

if number.is_a? String
false
elsif number == nil
false
elsif (number * 0.25) - (number * 0.25).round == 0
true
elsif number.class == String
false
else
false
end
end

can anyone advise if there is any cases I am missing?