js 获取设备或浏览器唯一标识的方式

网上的一些回复有很多，反正就是获取不到h5的机器码，或者mac地址，所以只能获取浏览器唯一标识。

fingerprint获取的方式，代码：

1. const fpPromise = new Promise((resolve, reject) => {
2. const script = document.createElement('script')
3. script.onload = resolve
4. script.onerror = reject
5. script.async = true
6. script.src = 'https://cdn.jsdelivr.net/npm/'
7. + '@fingerprintjs/fingerprintjs@3/dist/fp.min.js'
8. document.head.appendChild(script)
9. })
10. .then(() => FingerprintJS.load())
11.  
12. // Get the visitor identifier when you need it.
13. fpPromise
14. .then(fp => fp.get())
15. .then(result => {
16. // This is the visitor identifier:
17. const visitorId = result.visitorId
18. console.log(visitorId)
19. })

github：https://github.com/fingerprintjs/fingerprintjs