Learning Elixir: Control Flow with Case and Cond

Pattern matching is a fundamental aspect of Elixir programming, and case and cond expressions provide powerful ways to handle control flow. Case expressions allow matching against structured data like tuples and maps, while cond expressions evaluate multiple conditions sequentially. Common use cases include error handling with case and state transitions with cond. Case Expressions - Match values against patterns using case. - Handle complex data structures by matching against tuples, maps, or custom structs. - Use guards to filter matches based on additional conditions. Cond Expressions - Evaluate multiple conditions until one evaluates to true. - Handle error handling by matching against error conditions. - Manage state transitions by testing valid transitions and returning errors for invalid ones. Common Use Cases - Error Handling with Case: Match against specific error codes or reasons. - State Machine Transitions with Cond: Check for valid transitions and return errors for invalid ones. Best Practices - Use case for pattern matching and complex data structures. - Use cond for testing conditions and error handling. - Keep patterns concise and avoid excessive nesting. - Use guards to enhance pattern matching specificity. - Consider combining case and cond for complex scenarios.