Memoize the processor in MarkdownHooks #909
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Some plugins may perform heavy work in preparation to make the transformer light-weight. A good example of this is `rehype-starry-night`. Without this change, an interactive markdown editor which includes `rehype-starry-night` is very sluggish. With this change, performance is as good as if `rehype-starry-night` isn’t even used.
remcohaszing
added
🏁 area/perf
6 tasks
Codecov ReportAll modified and coverable lines are covered by tests ✅
Additional details and impacted files@@ Coverage Diff @@
## main #909 +/- ##
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Coverage 100.00% 100.00%
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Files 3 3
Lines 1354 1743 +389
Branches 113 123 +10
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wooorm
reviewed
Apr 19, 2025
lib/index.js
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| export function MarkdownHooks(options) { | ||
| const processor = createProcessor(options) | ||
| const processor = useMemo( | ||
| () => createProcessor(options), |
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please use a regular function, thanks
wooorm
approved these changes
Apr 21, 2025
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Thanks! :) |
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Initial checklist
Description of changes
Some plugins may perform heavy work in preparation to make the transformer light-weight. A good example of this is
rehype-starry-night.Without this change, an interactive markdown editor which includes
rehype-starry-nightis very sluggish. With this change, performance is as good as ifrehype-starry-nightisn’t even used.Fix https://github.com/orgs/rehypejs/discussions/194