Soroush Khanlou • 2/24/2025

Faking Value Semantics with Custom FormatStyles

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The article discusses the limitations of the old NSFormatter API and introduces Swift's new FormatStyle protocol. It provides a step-by-step tutorial on creating a custom OrdinalFormatStyle for locale-aware ordinal number formatting (e.g., "3rd"), including performance optimizations and handling shared formatter instances.

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#Io #Swift #Formatstyle
Faking Value Semantics with Custom FormatStyles

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