I think you got a typo in chapter 2
heron2014 opened this issue · 3 comments
heron2014 commented
Under Numbers :
use isNan(numbers) to check for NaNs ( instead of isNaN(numbers) )
nelsonic commented
Well spotted @heron2014
https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/Global_Objects/isNaN
Please submit a pull request with the correction.
iteles commented
Fixed by @heron2014 in PR #12