55 lessons

Swift Lessons

Learn Swift through an 11-module course covering fundamentals, data modeling, control flow, closures, protocols, optionals and more.

Code preview

swift

func greet(_ name: String?) -> String {
    "Hello, \(name ?? "friend")"
}

●Hello, friend

55 lessons across 11 sections. Each example shows real, runnable code with its expected output.

Topics covered

OptionalsFunctionsProtocolsConcurrency