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Swift Cheat Sheet
Print-ready cheat sheet for Swift, organized for fast lookup, study, and desk-side use
Sample
What's in this cheat sheet
- Basics
- Types
- Control Flow
- Functions
- Closures
- Classes & Structs
- Protocols
- Optionals
- Enums
- Error Handling
Hello World
import Foundation
print("Hello, World!")
Constants & Variables
let name = "Swift" // constant (immutable)
var count = 0 // variable (mutable)
count += 1
let pi: Double = 3.14 // explicit type annotation
Comments
// single-line comment
/* multi-line
comment */
/// documentation comment (Markdown supported)
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