javascript NaN
so. NaN (not a number) is classified as a primitive value by the ECMA-262 standard and indicates that the specified value is not a legal number. NaN is not a string, and not a number itself, so it can’t be checked for with != or ==. in fact, you have to use the isNaN() function! Why I can’t use a .nil? or have my parseInt(“you cannot convert me!”) return null i don’t know…
of course it gets really interesting if you do typeof(parseInt(“you cannot convert me!”)). that of course yields ‘number’. hmm.
