Building an HTML DSL with Elixir Metaprogramming

Elixir macros offer powerful tools for metaprogramming, but understanding how to use them effectively to generate clean code can be challenging. This course demystifies the core concepts of quoting, unquoting, and macro hygiene, providing the practical skills needed to define your own clean, embedded Domain Specific Languages (DSLs) within Elixir applications. What you'll learn: * Understand the core principles of Elixir metaprogramming, including Abstract Syntax Trees (ASTs) and the role of `quote` and `unquote`. * Practice defining custom macros that accept arguments and generate complex, nested Elixir expressions. * Design and implement a simple HTML DSL for generating common web elements like divs and input forms. * Apply macro hygiene rules to prevent variable capture and ensure the generated code is robust and predictable. * Learn to test macro definitions effectively using ExUnit to verify the structure and behavior of the output code. The material begins with foundational definitions and moves quickly into practical examples, guiding you step-by-step through creating the DSL structure and applying it to generate a complete HTML sign-up form. This course is designed for beginner Elixir developers who have a basic understanding of the language syntax and are ready to explore its powerful metaprogramming features. No prior experience with macros is necessary. Start reading today and unlock the potential of defining flexible custom syntax in Elixir.