⚡ Bolt: Optimize saved sessions filtering with Set lookup#179
⚡ Bolt: Optimize saved sessions filtering with Set lookup#179
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💡 What: Replaced the `savedSessionIds.includes(s.id)` array lookup with `savedIdsSet.has(s.id)` using a `Set` within the `filteredSchedule` useMemo hook in `ScheduleContainer`. 🎯 Why: The `includes` method inside the `filter` callback creates an O(N*M) time complexity. By converting the lookup array to a `Set` outside the loop, the membership check becomes O(1), improving the overall operation to O(N+M). This prevents performance degradation when the number of saved sessions or total schedule sessions grows. 📊 Impact: Reduces iteration overhead in the rendering pipeline. The time complexity for calculating the filtered schedule is optimized from O(N*M) to O(N+M). 🔬 Measurement: Run `npm run test` and `npm run lint` to verify that the core schedule functionality remains perfectly intact. Co-authored-by: google-labs-jules[bot] <161369871+google-labs-jules[bot]@users.noreply.github.com>
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No actionable comments were generated in the recent review. 🎉 ℹ️ Recent review info⚙️ Run configurationConfiguration used: Organization UI Review profile: CHILL Plan: Pro Run ID: 📒 Files selected for processing (1)
📝 WalkthroughWalkthroughSession filtering in ScheduleContainer now uses a precomputed Set for checking saved session IDs instead of the array Changes
Estimated code review effort🎯 1 (Trivial) | ⏱️ ~3 minutes Poem
🚥 Pre-merge checks | ✅ 4 | ❌ 1❌ Failed checks (1 warning)
✅ Passed checks (4 passed)
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Code Review
This pull request optimizes the session filtering logic in ScheduleContainer.tsx by replacing array inclusion checks with a Set for more efficient lookups. The review feedback suggests further refining this by memoizing the Set creation to avoid redundant conversions when the filtering state toggles.
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| const filterSessions = (sessions: GridSession[]) => sessions.filter((s) => savedSessionIds.includes(s.id) || s.isServiceSession); | ||
| const savedIdsSet = new Set(savedSessionIds); |
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While converting the array to a Set inside useMemo is a significant optimization for the filtering logic, creating a new Set instance on every memoization trigger (including when showSavedOnly toggles) can be further optimized. Consider memoizing the Set itself based only on savedSessionIds to avoid redundant conversions when the toggle state changes.
| const savedIdsSet = new Set(savedSessionIds); | |
| const savedIdsSet = useMemo(() => new Set(savedSessionIds), [savedSessionIds]); |
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💡 What:
Replaced the
savedSessionIds.includes(s.id)array lookup withsavedIdsSet.has(s.id)using aSetwithin thefilteredScheduleuseMemo hook inScheduleContainer.🎯 Why:
The
includesmethod inside thefiltercallback creates an O(N*M) time complexity. By converting the lookup array to aSetoutside the loop, the membership check becomes O(1), improving the overall operation to O(N+M). This prevents performance degradation when the number of saved sessions or total schedule sessions grows.📊 Impact:
Reduces iteration overhead in the rendering pipeline. The time complexity for calculating the filtered schedule is optimized from O(N*M) to O(N+M).
🔬 Measurement:
Run
npm run testandnpm run lintto verify that the core schedule functionality remains perfectly intact.PR created automatically by Jules for task 9434671500239890305 started by @anyulled
Summary by CodeRabbit