type guard function that redefines an EsriBaseSymbol as an EsriSimpleMarkerSymbol if the type attribute of the verifyIfSymbol parameter is 'esriSMS'. The type ascention applies only to the true block of the if clause that use this function.
Polymorphic object to test in order to determine if the type ascention is valid.
true if the type ascention is valid.
type guard function that redefines an EsriBaseSymbol as an EsriSimpleMarkerSymbol if the type attribute of the verifyIfSymbol parameter is 'esriSMS'. The type ascention applies only to the true block of the if clause that use this function.