Swift Functions: Everything a Senior iOS Engineer Knows
Functions are one of the first Swift concepts we learn.
Yet they're also one of the easiest to underestimate.
Great function design leads to cleaner APIs, better testability, and more maintainable code.
In this guide, I cover:
- Parameter labels
- Default & variadic parameters
- inout
- Function types
- Escaping vs non-escaping closures
- API design best practices
If you're looking to write Swift that scales beyond small projects, this guide is for you.
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