Vinyl
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    Function normalizeLanguage

    • Normalizes a BCP 47 / RFC 5646 language tag.

      • Converts ISO 639-2 (3-letter) codes to ISO 639-1 (2-letter)
      • Forces language to lowercase, region to uppercase
      • Discards script/dialect subtags beyond language-REGION

      Examples: eng → en, en-us → en-US, fra-CA → fr-CA

      Parameters

      • locale: string

      Returns string

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