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Swift practice

0 exercises and 19 quizzes from the lessons of this track. Sample tests run in your browser; what you pass is kept in this browser only.

Getting started: Swift 6.4, toolchains and your first program

Quiz: What Swift is and where it runs Self-check · 10 questions
Quiz: Install Swift 6.4 on macOS, Linux and Windows Self-check · 10 questions
Quiz: Your first program: scripts, swiftc and packages Self-check · 10 questions
Quiz: Compiler errors, language modes and feature flags Self-check · 10 questions

Basics: values, types, operators and control flow

Quiz: Constants, variables and type inference Self-check · 11 questions
Quiz: Integers, overflow traps and wrapping operators Self-check · 14 questions
Quiz: Floating point, rounding and Decimal for money Self-check · 12 questions
Quiz: Operators, ranges and tuples Self-check · 16 questions
Quiz: Optionals: nil, if let, guard let and ?? Self-check · 13 questions
Quiz: Conditionals: if, guard, switch and expressions Self-check · 11 questions
Quiz: Loops, labels and control transfer Self-check · 12 questions

Strings, text and collections

Quiz: Strings and Unicode: characters that look right Self-check · 15 questions
Quiz: String indices, Substring and fast text processing Self-check · 12 questions
Quiz: Arrays, sets and dictionaries Self-check · 15 questions
Quiz: map, filter, reduce and lazy sequences Self-check · 13 questions
Quiz: Regex literals and RegexBuilder Self-check · 15 questions

Functions and closures

Quiz: Functions, argument labels and parameters Self-check · 12 questions
Quiz: Closures and higher-order functions Self-check · 12 questions
Quiz: Escaping closures, capture lists and [weak self] Self-check · 11 questions

Results here are what this browser has checked: feedback for you, not proof. They stay on this device; your Learn progress can be exported to a file. · Back to the Swift track