does devicePixelRatio is really useful

itzmeturtle

New Member
I just wonder if the devicePixelRatio related to the web-kit based browsers and Apple's device is really useful, Or it's just apple's private asset. You know, the web-kit engine is also belongs to apple inc. I think this kind of stuff was only meaningful for Apple's Retina screen, and i always think that the deference between the screen's resolution and OS's resolution should be handled properly by the OS, it's not our task.
If there are lots values of devicePixelRatio range from 0 to 1000000, how many pictures should i prepared for those screens.
 
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