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by ratbeard 4302 days ago
No, :nth-last-child(n) has the worst performance of any selector.
1 comments
bGriz 4302 days ago
span:nth-last-of-type(2n+1):not(div) > span ?

Edit: I reversed my edits to maintain proper history.

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ratbeard 4302 days ago
Actually, I spoke to soon. Since selector engines work right to left, this would first narrow down the list of elements to all the spans in the document. Assuming thats a fairly small percentage of the overall tags in the document, this selector runs at .0023 ms on my MBP w/ 8 GB or RAM.

Sa'll good.

Edit: For the record, bGriz edited his comment, making my comment invalid.

Edit (2): Thanks!

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bGriz 4302 days ago
Definitely fact.
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ratbeard 4302 days ago
Yea, thats slower for sure.
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