Rust Foundations for TypeScript Developers: Numbers and Strings

Coming from TypeScript, Rust's strict type system and memory management can feel overwhelming, especially when a single high-level number or string maps to multiple distinct types in Rust. This text-based course helps you map your existing JavaScript and TypeScript knowledge directly to Rust's powerful type model. You will transition from high-level runtime thinking to understanding how data is actually stored and managed in memory. By learning the fundamental differences in how Rust handles integers, floats, heap-allocated strings, and string slices, you will write safer, more efficient systems code with confidence. What you'll learn: Understand the core differences between high-level TypeScript types and low-level Rust types; Master Rust's numeric system, including signed and unsigned integers, floating-point types, and overflow behavior; Differentiate between owned String types and borrowed string slices (&str) in memory; Apply basic ownership and borrowing principles specifically to text and numeric data; Practice converting and manipulating strings safely without triggering compiler errors; Explore modern Rust tooling to format and lint your code as you learn. The course begins with foundational definitions of memory layout, comparing stack and heap allocation. You will then progress through written explanations and comparative code examples to master numeric types, string manipulation, and compile-time safety. This course is designed for JavaScript and TypeScript developers who are new to Rust and want to build a solid systems programming foundation. No prior low-level programming experience is required. Start reading today to unlock the power of Rust's type system.