Lessons · Topic
Swift
Four levels. Swift. Lesson 1 free. Pick a difficulty — each level is a full ten-lesson course.
Four difficulties
Introductory · 10 lessons · Lesson 1 free
An introduction to writing Swift
Swift · Introductory. Ten lessons. Open-book quizzes. Lesson 1 free.
Easy · 10 lessons · Lesson 1 free
Swift · Easy
Swift · Easy. Ten lessons. Open-book quizzes. Lesson 1 free.
Medium · 10 lessons · Lesson 1 free
Swift · Medium
Swift · Medium. Ten lessons. Open-book quizzes. Lesson 1 free.
Expert · 10 lessons · Lesson 1 free
Swift · Expert
Swift · Expert. Ten lessons. Open-book quizzes. Lesson 1 free.
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