Bug 1050755 Comment 14 Edit History

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Original comment by
on 
To whom it may concern, i wanted to use this bug to implement feature-detection for Firefox 54+, but it does not seems reliable as the correct behavior is observer under Firefox 52

I.e.

```
> [ Date.UTC(), Date.UTC(1) ]
< Array [ NaN, NaN ]
>
> navigator.userAgent
< "Mozilla/5.0 (Windows NT 6.3; WOW64; rv:52.0) Gecko/20100101 Firefox/52.0"
```

So, the [MDN's compatibility notes](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/UTC#Compatibility_notes) are not correct - as it does states `// Firefox <54: non-NaN` - and should be amended, thanks :)
Revision 1 by
on 
To whom it may concern, i wanted to use this bug to implement feature-detection for Firefox 54+, but it does not seems reliable as the correct behavior is observed under Firefox 52

I.e.

```
> [ Date.UTC(), Date.UTC(1) ]
< Array [ NaN, NaN ]
>
> navigator.userAgent
< "Mozilla/5.0 (Windows NT 6.3; WOW64; rv:52.0) Gecko/20100101 Firefox/52.0"
```

So, the [MDN's compatibility notes](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/UTC#Compatibility_notes) are not correct - as it does states `// Firefox <54: non-NaN` - and should be amended, thanks :)

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