Update FeedItem with precalculated time values and constant categories #723
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Actionable comments posted: 1
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ui/src/components/Bouts/FeedItem.tsx(3 hunks)
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ui/src/components/Bouts/FeedItem.tsx (1)
Learnt from: paulcretu
PR: orcasound/orcasite#694
File: ui/src/components/Bouts/FeedItem.tsx:36-36
Timestamp: 2024-11-12T04:20:49.636Z
Learning: DetectionCategory is a union type, not an enum; initializing arrays of DetectionCategory with string literals is valid.
🔇 Additional comments (3)
ui/src/components/Bouts/FeedItem.tsx (3)
28-28: Great optimization!
Moving the categories array to a constant is a good optimization. Since this is a static value, it doesn't need to be recreated on each render, and removing it from useMemo reduces unnecessary overhead.
69-69: LGTM!
The filtering logic is now more readable with the precalculated time variables.
Also applies to: 72-72
105-105: LGTM!
The dependency array correctly includes all the variables used within the effect. Removing categories from the dependencies is appropriate since it's now a constant.
ui/src/components/Bouts/FeedItem.tsx
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| const fifteenMinutesAgo = new Date(now.valueOf() - 15 * 60 * 1000); | ||
| const fiveMinutesAgo = new Date(now.valueOf() - 5 * 60 * 1000); |
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🛠️ Refactor suggestion
Consider using useMemo for time calculations
While extracting these calculations improves readability, they're based on now which is only initialized once when the component mounts. For long-lived components, this could lead to stale calculations.
Consider using useMemo to keep the calculations fresh:
- const fifteenMinutesAgo = new Date(now.valueOf() - 15 * 60 * 1000);
- const fiveMinutesAgo = new Date(now.valueOf() - 5 * 60 * 1000);
+ const fifteenMinutesAgo = useMemo(() => new Date(Date.now() - 15 * 60 * 1000), []);
+ const fiveMinutesAgo = useMemo(() => new Date(Date.now() - 5 * 60 * 1000), []);Committable suggestion skipped: line range outside the PR's diff.
Decided to implement changes suggested here #716 (comment)
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