- Move the Whole Family in One Car: Structs as ContainersHow Structs Keep Related Elixir State Moving TogetherUse Elixir structs as containers for fixed domain state. Learn how a tetromino struct keeps name, location, rotation, and color together while reducers update one field at a time.Elixir Functional Programming Structs Data Structures Reducers
- A Struct Is Just a Map With RulesHow Structs Give Elixir Maps a Fixed ShapeStructs are maps with rules: fixed fields, a hidden __struct__ key, and clearer boundaries around domain data. Learn when to choose a map and when to reach for a struct in Elixir.Elixir Functional Programming Structs Data Structures Protocols
- Maps: Elixir's Random-Access WorkhorseChoosing Maps Over Keyword Lists for Fast Key-Based DataMaps are Elixir's random-access key-value structure. Learn when to choose maps over keyword lists, how map lookup and updates work, and why maps integrate with Enumerable and Collectible.Elixir Functional Programming Maps Data Structures
- Lists Are Not ArraysWhy Elixir Lists Reward Head-First Thinking Instead of Index-Based AccessLearn why Elixir lists are linked structures, how `[head | tail]` reveals their shape, and why building left then reversing once leads to clearer, faster code.Elixir Functional Programming Lists Data Structures
- When the Shape Is the Contract: Tuples, Tagged Tuples, and KeywordsHow Elixir Data Shapes Turn Ambiguous Returns into Explicit ContractsLearn when to use tuples, tagged tuples, and keyword lists in Elixir, and why designing return values as contracts leads to clearer, more maintainable code.Elixir Functional Programming Data Structures Pattern Matching
- Learning Elixir? Data Shape Is a Design DecisionChoosing the Right Data Structure for Intent and ClarityIn Elixir, data shape determines how code behaves and reads. Learn when to use atoms, tuples, lists, and maps to make your intent explicit.Elixir Data Structures Design Functional Programming