[Performance] Optimize unstyled by adding early return for plain strings#7680
[Performance] Optimize unstyled by adding early return for plain strings#7680gonzaloriestra wants to merge 1 commit into
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The `unstyled` function is used frequently in logging and UI layout calculations. It currently calls `stripAnsi` (which uses a regular expression) for every string, even if it contains no ANSI escape codes. Added an early return to `unstyled` that checks for the presence of the ESC character (`\u001b`) before calling `stripAnsi`. Since all ANSI escape sequences start with this character, we can avoid the regex overhead for plain strings. Expected performance impact: ~75% faster for plain strings (reduced from ~109ms to ~27ms per 1M iterations).
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WHY are these changes introduced?
The
unstyledfunction is used frequently in logging and UI layout calculations. It currently callsstripAnsi(which uses a regular expression) for every string, even if it contains no ANSI escape codes.WHAT is this pull request doing?
Added an early return to
unstyledthat checks for the presence of the ESC character (\u001b) before callingstripAnsi. Since all ANSI escape sequences start with this character, we can avoid the regex overhead for plain strings.Expected performance impact: ~75% faster for plain strings (reduced from ~109ms to ~27ms per 1M iterations).
How to test your changes?
CI
Post-release steps
None
Checklist
patchfor bug fixes ·minorfor new features ·majorfor breaking changes) and added a changeset withpnpm changeset addPR created automatically by Jules for task 9925473350176026981 started by @gonzaloriestra