NDEFRecord.data

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.

Syntax

NDEFRecord.data

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 API
# dom-ndefrecord-data

Browser compatibility

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
No
89
No
No
No
No

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https://developer.mozilla.org/en-US/docs/Web/API/NDEFRecord/data