Swift Basic | Part 2 In this video, we explore important programming fundamentals starting with data types and how they work. Next, we explain Optionals and why they are important for handling nil values safely. Then, we demonstrate how to use custom separators and terminators when printing output. Finally, we cover string concatenation and string interpolation to build dynamic and readable output. Perfect for beginners learning core programming concepts step by step. 0:00 - 0:12 Type 0:12 - 0:3