math.isNaN() function

math.isNaN() reports whether f is an IEEE 754 “not-a-number” value.

Function type signature
(f: float) => bool
For more information, see Function type signatures.



(Required) Value to operate on.


Check if a value is a NaN float value

import "math"

math.isNaN(f: 12.345)// false

Use math.isNaN in map

import "math"

    |> map(fn: (r) => ({r with _value: math.isNaN(f: r._value)}))

View example input and output

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