TypeScript to WebAssembly Compiler

A TypeScript-like language designed specifically to compile to WebAssembly, giving developers low-level control over their code while using familiar syntax. The compiler targets the WebAssembly feature set directly rather than treating it as a generic compilation backend, enabling fine-grained memory management, manual memory allocation and deallocation, and deterministic performance characteristics that compile-to-WASM approaches from higher-level languages cannot achieve. The syntax closely mirrors TypeScript, making it accessible to the millions of developers already familiar with typed JavaScript, with key differences including explicit numeric types like i32, i64, f32, f64, and usize instead of JavaScript numbers, and static array types with compile-time bounds checking. The language supports standard WebAssembly features including linear memory, tables, global variables, and import and export of functions and memories for JavaScript interop. Build tooling integrates with the existing web ecosystem through npm, requiring no heavy toolchain setup, with the compiler invoked through a simple CLI or programmatically through the API. The optimizer passes run on the intermediate Binaryen representation, performing dead code elimination, constant folding, function inlining, and memory access optimization to produce compact and efficient WebAssembly binaries. Standard library implementations cover collections like Array and Map, math operations, string manipulation, and console output, all implemented in pure AssemblyScript for portability. The language supports asyncify for stack switching, garbage collection through runtime reference counting with cycle detection, and SIMD operations through portable intrinsics. Interactive playgrounds allow trying the compiler in the browser, and the ecosystem includes loader libraries for seamless integration with JavaScript applications requiring near-native computational performance.