NDEFRecord

Limited availability

This feature is not Baseline because it does not work in some of the most widely-used browsers.

Secure context: This feature is available only insecure contexts (HTTPS), in some or allsupporting browsers.

Experimental:This is anexperimental technology
Check theBrowser compatibility table carefully before using this in production.

TheNDEFRecord interface of theWeb NFC API provides data that can be read from, or written to, compatible NFC devices, e.g., NFC tags supporting NDEF.

Constructor

NDEFRecord()Experimental: Returns a newNDEFRecord.

Instance properties

NDEFRecord.recordTypeExperimentalRead only: Returns the record type of the record. Records must have either a standardized well-known type name such as"empty","text","url","smart-poster","absolute-url","mime", or"unknown" or else an external type name, which consists of a domain name and custom type name separated by a colon (":").
NDEFRecord.mediaTypeExperimentalRead only: Returns the MIME type of the record. This value will benull ifrecordType is not equal to"mime".
NDEFRecord.idExperimentalRead only: Returns the record identifier, which is an absolute or relative URL used to identify the record.
Note:The uniqueness of the identifier is enforced only by the generator of the record.
NDEFRecord.dataExperimentalRead only: Returns a DataView containing the raw bytes of the record's payload.
NDEFRecord.encodingExperimentalRead only: Returns the encoding of a textual payload, ornull otherwise.
NDEFRecord.langExperimentalRead only: Returns the language of a textual payload, ornull if one was not supplied.

Instance methods

NDEFRecord.toRecords()Experimental: Converts NDEFRecord.data to a sequence of records. This allows parsing the payloads of record types which may contain nested records, such as smart poster and external type records.