Decoding Dictionaries From Basics to Interview-Ready

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.
Requirements
Basic understanding of Swift syntax (variables, conditionals, loops).
Familiarity with arrays and simple data structures in Swift.
Experience writing functions and working with optionals.
Ability to run Swift code in Xcode or a Swift Playground.
Some exposure to how JSON data is structured (helpful but not required).
Comfort reading documentation and exploring examples independently.
A Mac with Xcode installed (version 13 or higher recommended).
No need for UIKit or SwiftUI experience—this course is logic-focused.
Ideal for beginners with a few weeks of Swift behind them.
No prior experience with dictionaries required—this course starts at the foundation.
Description
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 dataGrouping, merging, mapping, and filtering dictionary contentBuilding dictionary-powered algorithms for real-world useSolving common interview-style coding challenges using dictionariesParsing and decoding JSON into dictionaries using CodableUsing dictionaries to manage view state, model data, and moreCoding Challenges Include:Grouping articles by tagsCounting word frequency from text inputReversing a dictionary's key-value pairsFiltering based on nested keys and optional valuesBuilding lookup tables dynamicallyCustom decoding of nested JSON dictionariesBy 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.
Who this course is for
Swift beginners who struggle with understanding dictionaries.
iOS developers preparing for technical interviews involving data manipulation.
Self-taught developers who feel their foundation in Swift is incomplete.
Students looking to improve their problem-solving skills with real coding challenges.
Developers transitioning from another language who need to master Swift dictionaries.
Junior iOS engineers who want to write cleaner, more efficient Swift code.
Programmers overwhelmed by JSON decoding and key-value data handling.
Learners who are confident with arrays but unsure how to leverage dictionaries.
Developers seeking practical, hands-on Swift practice outside of UI-heavy courses.
Anyone tired of surface-level tutorials and ready to go deeper with Swift fundamentals.
Homepage

https://www.udemy.com/course/decoding-dictionaries-from-basics-to-interview-ready/

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