Re: [web-nfc] What is the correct way to check whether the browser supports Web NFC API or not? (#434) from François Beaufort via GitHub on 2019-11-05 (public-web-nfc@w3.org from November 2019)

From: François Beaufort via GitHub <sysbot+gh@w3.org>
Date: Tue, 05 Nov 2019 10:37:13 +0000
To: public-web-nfc@w3.org
Message-ID: <issue_comment.created-549765910-1572950232-sysbot+gh@w3.org>

Indeed!
```js
if ('NDEFReader' in window) { /* ... Scan NDEF Tags */ }
if ('NDEFWriter' in window) { /* ... Write NDEF Tags */ }
```
You can also use Permissions API
```js
try {
  const status = await navigator.permissions.query({ name: 'nfc'});
}
catch(e) {
  // No Web NFC support
}
```

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Received on Tuesday, 5 November 2019 10:37:15 UTC