[Justin_Time]

typeof n === 'number'

It didn't actually require differentiating between integers and floats, just numbers and other types.

[iainnash]

This typeof stuff (and having number instead of integer, string, etc) was the hardest part of this for me.

Normally javascript function inputs aren't this messy.

[solox3]

    > typeof 5.4
      "number"

[kirse]

Yea, this is what I realized once I saw the puzzle was throwing junk data like "false" on #5.

I mentally skipped over Justin_Time's solution, figuring I would just hit a float error case because it was going to be a stickler about integers.