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Optimize performance for single-element selectors #7

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jdorn opened this issue Feb 18, 2021 · 0 comments
Open

Optimize performance for single-element selectors #7

jdorn opened this issue Feb 18, 2021 · 0 comments

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@jdorn
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jdorn commented Feb 18, 2021

If you call mutate("#myid", ...), once a matching element is found, we can stop waiting for new elements to appear, since ids are unique on a page.

  • [^,]*#id - id match (with optional narrowing prefix)
  • body or html - specific elements that can only exist once on a page

We can also add an optional 4th argument to mutate with config options, one of which explicitly says to only match the first element found.
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