Chapter 3: Exploring WebAssembly Modules
WebAssembly is a low-level assembly-like code that is designed for efficient execution and compact representation. WebAssembly runs at a near-native speed in all JavaScript engines (including modern desktop and mobile browsers and Node.js). Compact representation of the binary enables the generated binary to be as small as possible in size.
Note
The main goal of WebAssembly is to enable high-performance applications.
Each WebAssembly file is an efficient, optimal, and self-sufficient module called a WebAssembly module (WASM). WASM is safe, that is, the binary runs in a memory-safe and sandboxed environment. WASM does not have permission to access anything outside of that sandbox. WASM is language-, hardware-, and platform-independent.
WebAssembly is a virtual instruction set architecture (ISA). The WebAssembly specifications define the following:
- Instruction set
- Binary encoding
- Validation
- Execution semantics...
