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.
js
NDEFRecord.data
A DataView that contains encoded payload data of the record.
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.
js
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}`);
}
}
};
| Specification |
|---|
| Web NFC API # dom-ndefrecord-data |
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
data |
No | No | No | No | No | No | 89 | 89 | No | 63 | No | 15.0 |
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https://developer.mozilla.org/en-US/docs/Web/API/NDEFRecord/data