HAve you guys used

Number.isNaN()

? I get an error saying

TypeError: Cannot find function isNaN in object function Number() { [native code for Number.Number, arity=1] }

then I thought, well I’ll use

typeof

but came across that in javascript (don’t know if in any other language is the same haha) `typeof NaN == Number`so, any ideas, what Im just trying to do is on a reduce just trying to get the total of, but some cases the value of the variable is a a dash

'-'

Number.isNaN is too new.

Oh I see, thanks @battk I just did a quick search to check for NaN and came accross the

Number.isNan()

and as it worked on my jsbin haha, good to know!

reliably determining if something is number-like is oddly difficult in JS