undefined | Better HN

0 pointskuschku9y ago0 comments

NaN === NaN evaluates to false. That’s what happens here, not anything with Infinity.

0 pointskuschku9y ago0 comments

NaN === NaN evaluates to false. That’s what happens here, not anything with Infinity.

0 comments

5 comments · 2 top-level

caub9y ago· 2 in thread

just type them in your console instead of saying wrong things

kuschkuOP9y ago

Then they don’t conform to the IEEE standards, and the Javascript implementers are wrong.

caub9y ago

NaN !== NaN is just right

Arkanum9y ago· 1 in thread

Yeah, that makes sense mostly. But why is NaN === NaN false? What am I missing here?

kuschkuOP9y ago

Because there is many ways NaN can be generated, all very different.

== is only defined for numbers, too.

1/0 and 50/0 aren’t the same, for example.

j / k navigate · click thread line to collapse

5 comments · 2 top-level

caub9y ago· 2 in thread

just type them in your console instead of saying wrong things

kuschkuOP9y ago

Then they don’t conform to the IEEE standards, and the Javascript implementers are wrong.

caub9y ago

NaN !== NaN is just right

Arkanum9y ago· 1 in thread

Yeah, that makes sense mostly. But why is NaN === NaN false? What am I missing here?

kuschkuOP9y ago

Because there is many ways NaN can be generated, all very different.

== is only defined for numbers, too.

1/0 and 50/0 aren’t the same, for example.

j / k navigate · click thread line to collapse