Learn Swift dictionaries from the ground up—perfect for beginners, job prep, and real iOS project work.
Dictionaries are one of the most essential tools in Swift, yet most iOS development courses barely scratch the surface. They show up in passing, but few—if any—courses are dedicated to mastering them. This course is different.
What you’ll learn
- Understand how to create and access Swift dictionaries effectively..
- Safely unwrap and work with optional dictionary values..
- Use default values to avoid crashes when accessing keys..
- Group data using dictionaries for real-world scenarios..
- Merge, map, and filter dictionaries in Swift..
- Solve common interview problems using dictionaries..
- Decode JSON into dictionaries using Swift’s Codable system..
- Build dynamic lookup tables using key-value storage..
- Reverse dictionary mappings with confidence..
- Apply dictionary logic to SwiftUI and state management..
Course Content
- Why you should focus on learning about dictionary centered challenges. –> 31 lectures • 2hr 58min.
Requirements
Dictionaries are one of the most essential tools in Swift, yet most iOS development courses barely scratch the surface. They show up in passing, but few—if any—courses are dedicated to mastering them. This course is different.
Decoding Dictionaries: From Basics to Interview-Ready is the only course on the market that puts Swift dictionaries front and center, showing you how to manipulate, transform, and solve real problems with them. In the world of iOS development, being able to group, filter, restructure, and decode dictionary-based data is not just helpful—it’s critical.
Most online courses are built around what sells. This course is built around what you actually need to know to succeed as a mobile developer. If you’re serious about building clean, efficient, and interview-ready Swift code, this course gives you the skills that hiring managers quietly expect but few bootcamps or tutorials ever teach.
What You’ll Learn:
- Creating and safely accessing key-value data
- Grouping, merging, mapping, and filtering dictionary content
- Building dictionary-powered algorithms for real-world use
- Solving common interview-style coding challenges using dictionaries
- Parsing and decoding JSON into dictionaries using Codable
- Using dictionaries to manage view state, model data, and more
Coding Challenges Include:
- Grouping articles by tags
- Counting word frequency from text input
- Reversing a dictionary’s key-value pairs
- Filtering based on nested keys and optional values
- Building lookup tables dynamically
- Custom decoding of nested JSON dictionaries
By the end of this course, you’ll have the fluency and confidence to use dictionaries not just to pass coding challenges—but to build production-ready features and think like a professional Swift developer.