If the barcode image is hosted on your site, the value of the field is URL of the image, or a barcode or QR URI, such as "barcode128:AB34" (ISO-15417 barcodes), "qrCode:AB34" (QR codes), "aztecCode:AB34" (Aztec codes), "barcodeEAN:1234" (EAN codes) and "barcodeUPCA:1234" (UPCA codes).
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-03-24 UTC."],[],[]]