.

Remember you have to use the back-tick (`) or grave accent – usually in the top left of your keyboard – rather than apostrophes or quote marks!

Why do you feel the need the fill them in? If you dont care about writing your own tests just click submit.

Nice, I think you need to better explain what the second method needs to do:
"The second method takes valid ints (positive or negative) and returns a list of the values that follow the above rules."
to
"The second method takes 2 ints, positive or negative, and return an array with the result of the first function for each number between the 2 ints"

need default tests

Could be clearer about the loop conditions.

Clearly doesn't work. A test is expecting undefined for a case that shouldn't.

You should sort out the tests. Filling them in is a pain. Plus, who cares about Messi?!

This wasn't working for me. It's like the template string wasn't being parsed!

Still isn't clear.

I have a decimal. I'll return true if "the number" - What number? There's only one number.

For decimal numbers, return true only if the number is equal to its integer part and the integer part is odd.