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C# has a `ToLowerInvariant()` variety for that.

• paranoidrobot 6y ago
  Which iirc is an alias for ToLower on the en-us locale. (Same for the other C# *Invariant() methods)
  • GoblinSlayer 6y ago
    It calls ToLower(CultureInfo.InvariantCulture); Locale name is iv-IV.