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The provided code looks mostly okay, but there are a few improvements you could consider:
Remove redundant assignment: In the
updateLanguagefunction, if the received language is'pt-BR', it gets re-assigned to lowercase'pt-br'. This can be simplified by directly using lowercase in the condition.Consider locale formatting: If the application deals with text based on locale-specific formats (like dates or numbers), you might want to ensure consistency and handle cases where locales don't have specific configurations for certain languages.
Update comments: It's beneficial to add comments explaining why the code changes were made.
Here's an optimized version of the code with these considerations implemented:
These additions will help maintain proper casing rules and potentially improve performance slightly due to fewer checks. Additionally, adding comments provides clear understanding of how each part of the code works.