Has( ) method (JsonObject) Returns a LOGICAL indicating if the JsonObject contains the named property. Return type: LOGICAL Access: PUBLIC Applies to: Progress.Json.ObjectModel.JsonObject class Syntax Has( INPUT property-name AS CHARACTER ) property-name A CHARACTER expression naming the property to be tested. If this parameter is the empty string (“”) or is the Unknown value (?), a JsonError is raised.
Has( INPUT property-name AS CHARACTER )