Bug of type checking for numeric types on Js platform

Multiplatform
1

It looks like Kotlin (checked with 1.9.22 and with 2.1.20) common code does not properly do type checking of primitive types on Js platform.

Is this a bug or a feature?

val x: Double = 180.0
val y: Any = x
if (y is Byte) {
 println("Y is Byte")
}

image

UPD: this is a 5 years old bug :frowning: https://youtrack.jetbrains.com/issue/KT-33358/Common-code-in-JS-has-another-behaviour-for-numeric-type-checks