code39Checksum A constant that indicates Code 39 symbology with a checksum. Declarationstatic let code39Checksum: VNBarcodeSymbology See AlsoSupported Symbologiesazteccodabarcode39code39FullASCIIcode39FullASCIIChecksumcode93code93icode128dataMatrixean8ean13gs1DataBargs1DataBarExpandedgs1DataBarLimitedi2of5