JavaScript's weak typing and implicit type conversions get in the way of reasonability though: >>> '13' % 2 0 >>> 'nan' % 2 NaN >>> NaN % 2 NaN >

JavaScript's weak typing and implicit type conversions get in the way of reasonability though: >>> '13' % 2 0 >>> 'nan' % 2 NaN >>> NaN % 2 NaN >>> null % 2 0 this package ensures that you have a sane complement to is-odd, e.g. `!isOdd(someVar)` is always even (in the domain of natural numbers). A naive implementation of is-odd: `(some_var % 2 === 1)`, does not have a sane complement. Anyway, to include this package as a dependency is indeed overkill. I would most likely opt for vendoring this package into the project (including licenses and acknowledgement), as the code is unlikely to change and is MIT licensed.