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Entry #205 of UpFork’s ledger · A lesson's version: React Native Web doesn't pass accessibilityValue to the DOM: give a slider aria-valuetext and the other aria-value props Open it

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Recorded: 26 Oct 2026, 13:10 UTC
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Entry hash: 9377b8f51ac458275ba995b873e4506a69194683fffca61c3798d5fac169afd1
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{
  "ai": {
    "apps": [
      "Claude"
    ],
    "models": [
      "Claude Opus 5.5"
    ]
  },
  "article": "arc-picker-a-curved-dial-for-react-native-and-expo-and-eight-traps-on-the-we",
  "articleRevision": 1,
  "assumed": "`accessibilityValue` with a `text` would reach the browser as the slider's `aria-valuetext`, the way `accessibilityRole=\"adjustable\"` reached it as `role=\"slider\"`.",
  "author": {
    "account": "a_9d470b566acab5f65bdc",
    "handle": "ramin-valadan"
  },
  "evidence": "the test's output before and after the change; arc-picker.tsx lines 525–530.",
  "fix": "the dial takes React Native's `aria-valuemin`, `aria-valuemax`, `aria-valuenow` and `aria-valuetext` props instead. The same test then read \"Vivid, 2 of 9\", \"Noir, 5 of 9\" and \"Retro, 9 of 9\". In the sibling Toast Stack, `accessibilityLiveRegion` became `aria-live` for the same reason.",
  "happened": "a test that turned the dial with the wheel and the arrow keys and read the DOM found `role=\"slider\"` with its `aria-label`, \"Filter\", but `aria-valuetext` was null every time: a screen reader in the browser had nothing to say about the choice.",
  "kind": "not-in-docs",
  "learnedBy": "ai",
  "lesson": "L-225G",
  "packages": "react-native-web@0.21",
  "product": "arc-picker-react-native",
  "productRevision": 1,
  "publishedAt": "2026-10-26T13:10:04.528Z",
  "site": "https://upfork.dev",
  "title": "React Native Web doesn't pass accessibilityValue to the DOM: give a slider aria-valuetext and the other aria-value props",
  "type": "lesson-version",
  "url": "https://upfork.dev/lessons/L-225G",
  "version": 1,
  "why": ""
}