Theo's Typesafe Cult•11mo ago

Using Intl.formatList in Expo

I'm using expo-localization and react-intl together in order to try to use formatList. I have in my babel.config.js:

    plugins: [
      [
        "formatjs",
        {
          idInterpolationPattern: "[sha512:contenthash:base64:6]",
          ast: true,
        },
      ],
    ],

    plugins: [
      [
        "formatjs",
        {
          idInterpolationPattern: "[sha512:contenthash:base64:6]",
          ast: true,
        },
      ],
    ],

In my template:

...
import { useIntl } from "react-intl";

export default function Page() {
  const intl = useIntl();

  intl.listFormat(someArrayOfStrings);

  ...
}

...
import { useIntl } from "react-intl";

export default function Page() {
  const intl = useIntl();

  intl.listFormat(someArrayOfStrings);

  ...
}

My _layout.tsx is wrapped in <IntlProvider locale="en">. I get the following error:

ERROR  [Error: Intl.ListFormat is not available in this environment.
Try polyfilling it using "@formatjs/intl-listformat"
]

ERROR  [Error: Intl.ListFormat is not available in this environment.
Try polyfilling it using "@formatjs/intl-listformat"
]

I was under the (probably mistaken) impression that I do not need to polyfill when using expo-localization. What am I missing? Also saw some notes on changing the jsc flavor to intl+ for Android, but again, not sure if that's necessary.

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Using Intl.formatList in Expo