Learn WAT with Real Code Examples

Install WABT (WebAssembly Binary Toolkit)

Verify with `wat2wasm --version`

Create `.wat` file with module declaration

Compile: `wat2wasm module.wat -o module.wasm`

Load .wasm in JS or Wasm runtime

Install WABT toolkit

Set PATH for wat2wasm/wasm2wat

Write sample WAT file

Compile and run in browser/Node

Debug using wasm2wat

module.wat - main text module

module.wasm - compiled binary

loader.js - host interop code

Makefile - automation for wat2wasm tasks

tests/ - validation files

wat2wasm file.wat -> compile to binary

wasm2wat file.wasm -> inspect binary

wasm-interp -> run Wasm locally

wasm-objdump -> inspect sections

wasm-strip -> reduce binary size

WAT works with UTF-8 data

Localization done in host (JS)

Wasm handles language-neutral logic

String operations require manual encoding

Integrate with JS translation frameworks

Handled by JavaScript/HTML layer

WAT ensures deterministic backend logic

Outputs integrated with accessible UI

No direct impact on ARIA roles

Focus on correctness of computation

Not applicable - WAT is low-level compute-only

UI handled entirely by JavaScript/HTML/CSS

WAT provides backend computational logic

Use JS glue for DOM/WebGL

CSS frameworks unaffected by Wasm

Explicit stack operations

Manual memory offsets

No automatic garbage collection

Use locals to store intermediate values

Persistent memory via host environment

Use linear memory with byte precision

Define data segments for initial data

Use load/store instructions

Manually manage offsets

Communicate with JS via typed arrays