Function sanitizeEventValue

packages/runtime-dom/src/modules/events.ts:154–163

(value: unknown, propName: string)

}

function sanitizeEventValue(value: unknown, propName: string): EventValue {
  if (isFunction(value) || isArray(value)) {
    return value as EventValue
  }
  warn(
    `Wrong type passed as event handler to ${propName} - did you forget @ or : ` +
      `in front of your prop?\nExpected function or array of functions, received type ${typeof value}.`,
  )
  return NOOP
}