Swift Basics Documentation

Welcome to the Swift Basics guide! 🚀 This document covers fundamental concepts for beginners learning Swift programming. If you're new to Swift, start here to build a solid foundation.

Introduction to Swift
Variables and Constants
Functions
Control Flow
Collections
Further Reading

Introduction to Swift

Swift is a powerful and intuitive programming language developed by Apple. It's designed for building apps for iOS, macOS, watchOS, and tvOS. 🍎

Swift combines the best features of Objective-C and modern programming languages, making it both safe and expressive. For more details on Swift's history and features, check our Swift Overview.

Variables and Constants

Variables store values that can change, while constants store values that remain the same. 📌

Declaring Variables

var message = "Hello, Swift!"
message = "Welcome to programming!" // Variables can be updated

Declaring Constants

let pi = 3.14159 // Constants cannot be changed

Use var for mutable data and let for immutable data. A great example of variables in action is this tutorial.

Functions

Functions are blocks of code that perform a specific task. 🧠

Basic Function Syntax

func greet(name: String) -> String {
    return "Hello, $name)! 🌟
}

Function Calls

greet(name: "Alice") // Returns "Hello, Alice)!

Explore more about functions and their advanced uses in this section.

Control Flow

Control flow refers to the order in which code is executed. 🔄

Conditional Statements

if age >= 18 {
    print("You are an adult!") 🎉
} else {
    print("You are a minor.") 😕
}

Loops

for i in 1...5 {
    print(i) 📈
}

Learn more about control flow in this guide.

Collections

Collections are used to store multiple items in a single place. 🧾

Arrays

var fruits = ["Apple", "Banana", "Cherry"] 🍎🍌🍒

Dictionaries

let fruitColors = ["Apple": "Red", "Banana": "Yellow"] 🍌

Check out collections in depth for more information.