NDEFRecord
Secure context: This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.
Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
The NDEFRecord
interface of the Web 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 new
NDEFRecord
.
Instance properties
NDEFRecord.recordType
Experimental Read 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.mediaType
Experimental Read only-
Returns the MIME type of the record. This value will be
null
ifrecordType
is not equal to"mime"
. NDEFRecord.id
Experimental Read 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.data
Experimental Read only-
Returns a
DataView
containing the raw bytes of the record's payload. NDEFRecord.encoding
Experimental Read only-
Returns the encoding of a textual payload, or
null
otherwise. NDEFRecord.lang
Experimental Read only-
Returns the language of a textual payload, or
null
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.
Specifications
Specification |
---|
Web NFC API # dom-ndefrecord |
Browser compatibility
BCD tables only load in the browser