fix(web): keep formatTokens monotonic across the k/M boundaries - #617
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unohee merged 1 commit intoSep 15, 2026
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Summary
Fixes a rounding-boundary inconsistency in the dashboard token formatter:
formatTokens(999.5)returned the bare string"1000"whileformatTokens(1000)returned"1.0k", so a sub-thousand count displayed identically to a rounded-up thousand and broke monotonicity (999 -> "999",999.5 -> "1000",1000 -> "1.0k"). Same class of defect existed at the k/M edge (999999 -> "1000.0k"vs1000000 -> "1.0M").web/static/js/format.mjs:42-53— round once withMath.round, branch on the rounded value, and promote>= 999950toMso neither boundary can render"1000"/"1000.0k".tests/web/format.test.ts:56-68— regression tests pinning999.5 -> "1.0k",999.4/999 -> "999",999999 -> "1.0M",999949 -> "999.9k".Reproduced before the fix with
node --import=tsximportingweb/static/js/format.mjs:formatTokens(999.5) === "1000",formatTokens(999.6) === "1000". After the fix:1.0k,999,999,1.0k,1.0M,999.9k,1.2k,2.5Mfor the probe sequence.Related issue
No open issue exists (the repo currently has zero open issues). This is a proactive, no-behavior-change-except-the-bug fix discovered by scanning the dashboard formatting helpers (
web/static/js/format.mjs) and its coverage (tests/web/format.test.ts).Type of change
Checklist
npm run lintpasses (no new warnings;format.mjsclean)npm run typecheckpasses (unaffected; dashboard JS is not intsconfig.check.json)npm run buildpasses (unaffected)npm testpasses for the touched area (tests/web/format.test.ts: 8 passed)