Conversation
💡 What:
1. Extracted inline regular expressions from `parseDate` in `src/helpers/global.helper.ts` to module-level constants and replaced `.match()` with `.exec()`.
2. Refactored `parseSearchPeople` in `src/helpers/search.helper.ts` to use a `for...of` loop with an early return instead of `Array.from(el.querySelectorAll(...)).find(...)`.
🎯 Why:
1. `parseDate` is a frequently called utility function (often used within loops over lists of movies/reviews). Re-compiling the exact same regular expressions (`/^(\d{1,2})\.\s*(\d{1,2})\.\s*(\d{4})$/`, etc.) on every invocation adds unnecessary overhead and garbage collection pressure.
2. `Array.from(...).find(...)` forces the Javascript engine to allocate an intermediate Array of all matching `p` nodes before iterating through them. In `parseSearchPeople`, an early-exiting `for...of` loop avoids this O(N) allocation entirely.
📊 Impact:
Micro-benchmarks show the constant-hoisted `parseDate` is ~40% faster, and the loop refactor saves an unnecessary array allocation and loop traversal for DOM queries. While absolute gains are in milliseconds, these functions are on the hot path for large list traversals (e.g. search results).
🔬 Measurement:
Run `bun test` to verify `parseDate` correctness in `tests/helpers.test.ts`. Inspect memory allocation metrics in a profiler for large DOM tree scrapes.
Co-authored-by: bartholomej <5861310+bartholomej@users.noreply.github.com>
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Codecov Report✅ All modified and coverable lines are covered by tests. Additional details and impacted files@@ Coverage Diff @@
## master #171 +/- ##
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+ Coverage 98.80% 98.81% +0.01%
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Files 34 34
Lines 755 762 +7
Branches 191 192 +1
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+ Hits 746 753 +7
Misses 9 9 ☔ View full report in Codecov by Sentry. 🚀 New features to boost your workflow:
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No actionable comments were generated in the recent review. 🎉 ℹ️ Recent review info⚙️ Run configurationConfiguration used: defaults Review profile: CHILL Plan: Pro Run ID: 📒 Files selected for processing (2)
📝 WalkthroughWalkthroughTwo helper functions undergo refactoring: Changes
Possibly related PRs
Estimated code review effort🎯 2 (Simple) | ⏱️ ~12 minutes Poem
🚥 Pre-merge checks | ✅ 2 | ❌ 1❌ Failed checks (1 inconclusive)
✅ Passed checks (2 passed)
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2 participants
💡 What:
parseDateinsrc/helpers/global.helper.tsto module-level constants and replaced.match()with.exec().parseSearchPeopleinsrc/helpers/search.helper.tsto use afor...ofloop with an early return instead ofArray.from(el.querySelectorAll(...)).find(...).🎯 Why:
parseDateis a frequently called utility function (often used within loops over lists of movies/reviews). Re-compiling the exact same regular expressions (/^(\d{1,2})\.\s*(\d{1,2})\.\s*(\d{4})$/, etc.) on every invocation adds unnecessary overhead and garbage collection pressure.Array.from(...).find(...)forces the Javascript engine to allocate an intermediate Array of all matchingpnodes before iterating through them. InparseSearchPeople, an early-exitingfor...ofloop avoids this O(N) allocation entirely.📊 Impact:
Micro-benchmarks show the constant-hoisted
parseDateis ~40% faster, and the loop refactor saves an unnecessary array allocation and loop traversal for DOM queries. While absolute gains are in milliseconds, these functions are on the hot path for large list traversals (e.g. search results).🔬 Measurement:
Run
bun testto verifyparseDatecorrectness intests/helpers.test.ts. Inspect memory allocation metrics in a profiler for large DOM tree scrapes.PR created automatically by Jules for task 15614202714676910773 started by @bartholomej
Summary by CodeRabbit