Introduction
Swift is Apple’s modern programming language for building iOS, iPadOS, and macOS apps. This guide helps beginners set up and write their first Swift program.
Setting up Xcode
Download Xcode from the App Store. It comes with everything: compiler, debugger, and SwiftUI tools.
Swift Basics
// Variables & constants
var name = "Navu"
let age = 13
// Functions
func greet(person: String) -> String {
return "Hello, \(person)!"
}
SwiftUI Example
import SwiftUI
struct ContentView: View {
var body: some View {
Text("Hello Swift!")
.font(.largeTitle)
.padding()
}
}
Best Practices
- Use
letfor constants when possible. - Keep functions short and descriptive.
- Adopt SwiftUI for modern iOS apps.
Conclusion
With Xcode installed and these basics, you can start experimenting with Swift right away. Build small projects, practice often, and you’ll quickly grow as an iOS developer.