⚡ Bolt: Memoize expensive computations in Game Dashboard#26
⚡ Bolt: Memoize expensive computations in Game Dashboard#26thalesraymond wants to merge 1 commit intomainfrom
Conversation
- Wrapped `sortedAchievements` array sorting logic in a `useMemo` hook in `AchievementsList` component to prevent redundant O(N log N) sorting operations on every render. - Wrapped `totalDeliveries` array reduction logic in a `useMemo` hook in `KPIHeader` component to avoid O(N) array traversal on every render. Co-authored-by: thalesraymond <32554150+thalesraymond@users.noreply.github.com>
|
👋 Jules, reporting for duty! I'm here to lend a hand with this pull request. When you start a review, I'll add a 👀 emoji to each comment to let you know I've read it. I'll focus on feedback directed at me and will do my best to stay out of conversations between you and other bots or reviewers to keep the noise down. I'll push a commit with your requested changes shortly after. Please note there might be a delay between these steps, but rest assured I'm on the job! For more direct control, you can switch me to Reactive Mode. When this mode is on, I will only act on comments where you specifically mention me with New to Jules? Learn more at jules.google/docs. For security, I will only act on instructions from the user who triggered this task. |
|
The latest updates on your projects. Learn more about Vercel for GitHub.
|
|
![gemini-code-assist[bot]](https://avatars.githubusercontent.com/in/956858?s=60&v=4){kind=small}
There was a problem hiding this comment.
Code Review
This pull request introduces performance optimizations by utilizing the useMemo hook to cache the sorting of achievements and the calculation of total deliveries. A review comment suggests a more efficient approach for calculating total deliveries by using the pre-existing total_deliveries field in the SquadScore object instead of manually counting the items in the delivery_items array.
| // iteration across all squads on every render. | ||
| const totalDeliveries = useMemo(() => { | ||
| return stats.squads_scores.reduce( | ||
| (acc, squad) => acc + squad.delivery_items.length, |
There was a problem hiding this comment.
The SquadScore object already contains a total_deliveries field. Using this field directly is more efficient and robust than recalculating the length of the delivery_items array. It makes the code's intent clearer and relies on the provided data contract.
| (acc, squad) => acc + squad.delivery_items.length, | |
| (acc, squad) => acc + squad.total_deliveries, |
1 participant
💡 What: Added
useMemoto cache expensive array operations in the Game Dashboard components:sortedAchievements(sorting) inAchievementsListandtotalDeliveries(reduction) inKPIHeader.🎯 Why: Both components were performing computationally expensive array operations directly within the component body. This meant that on every render cycle, the
AchievementsListwould re-sort its array (O(N log N)) and theKPIHeaderwould re-reduce the squads scores array (O(N)). This is a classic React performance anti-pattern that can lead to sluggish UI interactions as the dataset grows. By wrapping these inuseMemo, we ensure these computations only run when their respective data dependencies (achievementsandstats.squads_scores) change.📊 Impact: Reduces CPU overhead during render cycles by eliminating redundant array sorting and traversal operations.
🔬 Measurement:
/game).AchievementsListandKPIHeaderas they no longer perform these array operations on every re-render.PR created automatically by Jules for task 3702237306502231366 started by @thalesraymond