Re: [csswg-drafts] [css-fonts] FontFaceSet uses referential equality for calculating .has()

I agree that for the suggested usage (a single app trying to dedupe 
its own stuff) a generic and simple string-comparison method would 
work fine.

However, because such a simple method works fine, it's less clear that
 we need to add anything to the spec - it's trivial to write a 
comparison method that iterates over the set and checks if a given 
font is already there.  A native implementation won't be any faster 
than what you can write yourself, as it would have to do 
iterate-and-compare too.  And I'm not sure that the use-case is 
widespread enough to justify shipping an implementation to everyone 
else. :/

-- 
GitHub Notification of comment by tabatkins
Please view or discuss this issue at 
https://github.com/w3c/csswg-drafts/issues/273#issuecomment-231903958 
using your GitHub account