Loops in Swift Explained: for-in, while & repeat-while |
🎉 Welcome to Day 10 of #100DaysOfiOS!
In this lesson, we learn how to repeat actions and process data in Swift using loops — one of the most essential concepts in programming.
Loops are used everywhere in iOS development:
iterating over arrays, processing dictionaries, calculating totals, handling retries, and building SwiftUI lists.
📘 What you’ll learn in this video:
What loops are and why they are important
for-in loops with ranges, arrays, and dictionaries
Half-open vs closed ranges
while loops and when to use them
repeat-while loops and how they differ from while
Using break and continue
Common beginner mistakes to avoid
🧠 Why this matters
Loops are the bridge between data and logic. Once you understand loops, concepts like SwiftUI ForEach, APIs, and dynamic UI become much easier.
🚀 Next Lesson:
Optionals in Swift — nil, safe unwrapping & best practices
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