Swift 6: Основы 2025 - Урок 8. Множества (Set) - Неупорядоченные уникальные коллекции в Swift

In this lesson, we'll take a detailed look at Sets in Swift—collections of unique elements that operate at lightning speed and can perform powerful mathematical operations. You'll learn how a Set differs from an Array, how to create sets, add and remove elements, check for data existence, and perform intersection, union, and subtraction of sets. 🎯 Intended for: Swift beginners who are already familiar with arrays and want to expand their data structure arsenal. 📚 Lesson Plan: 0:00 — What is a set and why do we need one 2:12 — Creating a Set: Literals, Types, Hashable 6:08 — The count and isEmpty Properties 7:35 — Adding Elements (insert) 9:15 — Removing Elements (remove, removeAll) 11:45 — Quick Contains Check (O(1)) 13:50 — Set Operations: Union, Intersection, Subtracting, SymmetricDifference 18:32 — Set Comparisons: ==, isSubset, isSuperset, isDisjoint 21:50 — Summary: When to Choose a Set and When to Use an Array Register for the "June in 5!" course: Telegram: @WladMadi Phone: +7 (967) 901-73-24 Learn more about the course: https://madi.study For individual training inquiries: Telegram: @WladMadi Phone: +7 (967) 901-73-24 Telegram chat link: https://t.me/+SBRqlvcbDWQ0ZGNi PS: Hello everyone! My name is Vlad Madi, and you're on the educational channel of the MADI.SPACE digital studio. Here we learn iOS app development using Swift. On our channel, you can learn Swift and iOS development using playlists. #swift #iosdev #set #programming #swiftui #xcode #training #swiftforbeginners