[dyc3]

Summary

When I was triaging #12049, I noticed we didn't really explain why the rule exists. This should provide more context for users.

Test Plan

green ci

Docs

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ℹ️ Recent review info

⚙️ Run configuration

• Configuration used: Repository: biomejs/biome/.coderabbit.yaml
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• Run ID: ff83b049-928e-4c1d-9778-f5f468b60178

📥 Commits

Reviewing files that changed from the base of the PR and between 249b008 and e5fd21f.

📒 Files selected for processing (2)

• crates/biome_html_analyze/src/lint/a11y/use_button_type.rs
• crates/biome_js_analyze/src/lint/a11y/use_button_type.rs

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Walkthrough

The UseButtonType documentation was expanded in the HTML and JavaScript analyzers. It describes button defaults, valid and invalid values, and cases where the type cannot be determined statically. New examples show buttons inside forms, including buttons with explicit types.

Suggested reviewers: ematipico

Priority: ⬇️ Low

Change: Other

Merge Risk: ⚪ Minimal · up to e5fd2

The reviewed documentation changes accurately describe the button-type behavior; no actionable change-specific risk remains, so the PR is ready for normal checks.

🚥 Pre-merge checks | ✅ 4

✅ Passed checks (4 passed)

Check name	Status	Explanation
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Title check	✅ Passed	The title clearly identifies the documentation update for the useButtonType rule.
Description check	✅ Passed	The description explains that the changes add context about why the rule exists, which matches the documentation updates.

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Actionable comments posted: 1

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Inline comments:
Review comments at @crates/biome_js_analyze/src/lint/a11y/use_button_type.rs:
- Around line 32-33: Clarify the documentation for the useButtonType rule:
spread attributes skip only the missing-type check because they may supply type;
an explicit static type is still checked even when the element has a spread
attribute.

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Repository: biomejs/biome/.coderabbit.yaml

Review profile: CHILL

Plan: Essentials

Run ID: c600bc26-d3b4-4381-b798-1e7d154b4c4d

📥 Commits

Reviewing files that changed from the base of the PR and between f5af193 and 249b008.

📒 Files selected for processing (2)

• crates/biome_html_analyze/src/lint/a11y/use_button_type.rs
• crates/biome_js_analyze/src/lint/a11y/use_button_type.rs

Included review availability: This review used your included allowance. Your plan provides up to 10 included reviews per hour; 9 remain after this review.

[codspeed]

Merging this PR will degrade performance by 5.67%

❌ 1 regressed benchmark
✅ 177 untouched benchmarks
⏩ 231 skipped benchmarks¹

Warning

Please fix the performance issues or acknowledge them on CodSpeed.

Performance Changes

	Benchmark	BASE	HEAD	Efficiency
❌	load[restricted_callee/js]	3 ms	3.2 ms	-5.67%

Tip

Investigate this regression by commenting @codspeedbot fix this regression on this PR, or directly use the CodSpeed MCP with your agent.

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_{Comparing dyc3/improve-usebuttontype-documentation-thr_b2zshxfgnz (e5fd21f) with main (74af6b1)²}

Footnotes

1. 231 benchmarks were skipped, so the baseline results were used instead. If they were deleted from the codebase, click here and archive them to remove them from the performance reports. ↩

2. No successful run was found on main (f5af193) during the generation of this report, so 74af6b1 was used instead as the comparison base. There might be some changes unrelated to this pull request in this report. ↩

[ematipico]

This PR should close the original issue

[ematipico]

Remember to update the PR description