[XaspR8d]

So you disagree with the IEEE floating point specification, then? Javascript is directly following spec there.

[effie]

Do you think that such rule for NaN state is useful?

[astrobe_]

Does that spec forces you to implement equality test between floating point numbers?

[Zarel]

...yes? I'm not sure exactly what you're asking here, though.

[astrobe_]

I'm asking if it is really a good idea for a language to provide equality/inequality for floating point numbers when it's often mistake to do that.

[Myrmornis]

So disallow the direct operator but allow equality to be deduced indirectly by usage of > < >= <= ?