scala.js - JQuery UI spinner spin event not as expected in Scala JS -


when define spinner in scalajs , handle spin value not able new spin value in event have expected. according jquery ui documentation second parameter spin event ui object contains value attribute. defined trait:

trait number extends js.object {     val value: int = js.native }

and handle spin event thus:

jquery("#myspinner").spinner(js.dynamic.literal(spin = { (e: htmlinputelement, ui: number)  =>   log("change: " + ui.value)   }: js.thisfunction1[htmlinputelement, number, any]))

but "value" attribute not seem member of ui object exception below in log statement. can tell me doing wrong?

uncaught exception: scala.scalajs.runtime.undefinedbehaviorerror: undefined behavior detected: undefined not instance of java.lang.integer

you e: htmlinputelement should e: event


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