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perf(replaceOrAppend): avoid creating 2 intermediate arrays #62

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merged 3 commits into from
Jul 3, 2024

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@aleclarson aleclarson commented Jul 2, 2024

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The owner of this PR can publish a preview release by commenting /publish in this PR. Afterwards, anyone can try it out by running pnpm add radashi@pr<PR_NUMBER>.

Summary

Generally speaking, a splice should be better performance than allocating 2 arrays that will need to be garbage collected. Not sure how well the benchmarks detect GC-related perf issues, though.

edit: @Minhir realized we could use basic assignment instead of splice. 🎉

Related issue, if any:

For any code change,

  • Related documentation has been updated, if needed
  • Related tests have been added or updated, if needed

Does this PR introduce a breaking change?

No

@aleclarson aleclarson added the 🔥 performance An improvement to runtime performance label Jul 2, 2024
src/array/replaceOrAppend.ts Outdated Show resolved Hide resolved
@aleclarson aleclarson changed the title perf(replaceOrAppend): splice instead of creating 2 intermediate arrays perf(replaceOrAppend): avoid creating 2 intermediate arrays Jul 2, 2024
@aleclarson aleclarson merged commit 26ecbc7 into main Jul 3, 2024
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@aleclarson aleclarson deleted the perf/replaceOrAppend branch July 3, 2024 02:26
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github-actions bot commented Jul 3, 2024

A new beta version 12.2.0-beta.dc9ade1 has been published to NPM. 🚀

To install:

pnpm add radashi@12.2.0-beta.dc9ade1

The radashi@beta tag also includes this PR.

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