mirror of
https://github.com/signalapp/Signal-Desktop.git
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Jamie
19 lines
827 B
TypeScript
19 lines
827 B
TypeScript
// Copyright 2021 Signal Messenger, LLC
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// SPDX-License-Identifier: AGPL-3.0-only
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// We ["MUST NOT generate more than three digits after the decimal point"][0]. We use a
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// space-efficient algorithm that runs out of digits after 28 languages. This should be
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// fine for most users and [the server doesn't parse more than 15 languages, at least
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// in some cases][1].
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//
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// [0]: https://httpwg.org/specs/rfc7231.html#quality.values
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// [1]: https://github.com/signalapp/Signal-Server/blob/bf6d3aa32407ff52b5547ed6ce2e7a2f2bbb0f03/service/src/main/java/org/signal/i18n/HeaderControlledResourceBundleLookup.java#L19
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export function getUserLanguages(
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defaults: undefined | ReadonlyArray<string>,
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fallback: string
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): ReadonlyArray<string> {
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const result = defaults || [];
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return result.length ? result : [fallback];
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}
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