NDEFRecord: data property
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 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 data
property of the NDEFRecord interface returns a
DataView containing the raw bytes of the record's payload.
Value
A DataView that contains encoded payload data of the record.
Examples
The following example loops over the records in an NDEFMessage
object, which is retrieved from NDEFReadingEvent.message. After
selecting a record based on its mediaType, it then decodes what's stored in the data property.
const ndef = new NDEFReader();
await ndef.scan();
ndef.onreading = (event) => {
const decoder = new TextDecoder();
for (const record of event.message.records) {
if (record.mediaType === "application/json") {
const json = JSON.parse(decoder.decode(record.data));
const article = /^[aeio]/i.test(json.title) ? "an" : "a";
console.log(`${json.name} is ${article} ${json.title}`);
}
}
};
Specifications
| Specification |
|---|
| Web NFC # dom-ndefrecord-data |
Browser compatibility
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Legend
Tip: you can click/tap on a cell for more information.
- Full support
- Full support
- No support
- No support
- Experimental. Expect behavior to change in the future.