Understanding Function Scope and Immutability in ReScript

Writing predictable code requires a deep understanding of how variables are defined and accessed. In functional programming, immutability and scope are the keys to avoiding unexpected side effects and ensuring clarity. By mastering lexical scope, variable shadowing, and working with immutable data structures, you will learn to write clean, reliable functional code that is easy to reason about and maintain. What you'll learn: * Understand the core principles of lexical scope and variable lookup in functional languages. * Master the use of immutable bindings and value shadowing to control state flow effectively. * Apply functional patterns for managing data structure updates without relying on mutation. * Learn how type systems interact with scope and bindings to enhance code safety and predictability. * Practice defining and using higher-order functions while maintaining clear variable context. The course begins with foundational definitions of functional programming principles and then moves into practical written exercises demonstrating scope rules and the application of immutable bindings. This course is designed for absolute beginners interested in learning the fundamentals of functional programming using the ReScript ecosystem. No prior experience with OCaml, ReasonML, or ReScript is required. Start building your foundation for writing robust and predictable functional applications today.