npm ts-pattern 5.4.0
v5.4.0

latest release: 5.5.0
one month ago

The main thing — Faster type checking 🚀

This release brings a significant perf improvement to exhaustiveness checking, which led to a ~16% decrease in the time to type-check the full test suite of TS-Pattern:

Category Before After Evolution (%)
Instantiations 6,735,991 4,562,378 -32.33%
Memory used 732,233K 746,454K 1.95%
Assignability cache size 209,959 205,926 -1.92%
Identity cache size 28,093 28,250 0.56%
Check time 5.78s 4.83s -16.44%

What's Changed

  • build(deps-dev): bump braces from 3.0.2 to 3.0.3 by @dependabot in #273
  • build(deps-dev): bump webpack from 5.91.0 to 5.94.0 in /examples/gif-fetcher by @dependabot in #276
  • build(deps): bump serve-static and express in /examples/gif-fetcher by @dependabot in #283
  • perf: improve type checking performance of BuildMany by @gvergnaud in #286
  • Fixes type InvertPatternForExcludeInternal to work with readonly array by @changwoolab in #284

New Contributors

Full Changelog: v5.3.1...v5.4.0

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