Spent nearly the entire time on #3 because I was trying to use String.replace to work and failing. Ended up using .split instead, which passed thanks to poor test coverage (just like at work!).
8:11 for me - as it sounds like was the case with others, the majority of that time was searching for how to check for specific types in Javascript.
For the "is this actually a string?" check, for example, I started looking for the existence of the match method on the object, which of course would have failed if they passed some random object with match defined so I cheated a bit. I'd like to see the full breadth of test options people took out there.
Spent nearly the entire time on #3 because I was trying to use String.replace to work and failing. Ended up using .split instead, which passed thanks to poor test coverage (just like at work!).