BUG: Number.isNumber(NaN)

Developers: Plugin & API
1

Obsidian adds Number.isNumber() function

Number.isNumber(NaN) returns true, which seems misleading

2

Looking at this page javascript - Why does angular.isNumber(NaN) return true? - Stack Overflow perhaps has some explanations for this.

Although the value of NaN represents something that is not a number, the value NaN itself is still a number type (in the type system sense).

It’s also a defined value for a floating point number in IEEE 754, which is what JavaScript uses for numbers. It is sensible that values infinity and NaN would be number types.

3

Here is the opposite logic.

And Here

I guess there is no an industry standard?

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