[Bug Report][3.11.1] Tables with `hover` are very slow with many items
Open
Nobody has claimed this yet.
C: VDataTable
performance
T: enhancement
- Dominant language
- TypeScript
- Stars
- 41k
- Forks
- 7.1k
- Avg merge
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- Merged PRs (30d)
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Description
Environment
Vuetify Version: 3.11.1
Vue Version: 3.5.24
OS: macOS 10.15.7 (current)
Expected Behavior
In Vuetify 2, table hover used to be a simple hover css on the tr and was instant.
Actual Behavior
When using the hover prop with many items, performance slows down a lot because of all the "::after" elements rendering when we hover.
Reproduction Link
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start with the linked Vuetify reproduction and inspect the table hover implementation responsible for rendering the ::after elements. Compare hover performance with many items against the reported Vuetify 2 behavior; done means the hover prop no longer causes substantial slowdown in large tables.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- typescript
- Domain
- frontend, performance
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 35/100