# webassembly-examples

**Repository Path**: mirrors_mdn/webassembly-examples

## Basic Information

- **Project Name**: webassembly-examples
- **Description**: Code examples that accompany the MDN WebAssembly documentation — see https://developer.mozilla.org/en-US/docs/WebAssembly. 
- **Primary Language**: Unknown
- **License**: CC0-1.0
- **Default Branch**: main
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2020-09-25
- **Last Updated**: 2026-05-17

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

# webassembly-examples

Code examples that accompany the MDN WebAssembly documentation — see https://developer.mozilla.org/en-US/docs/WebAssembly.

## Testing/modifying the examples

The examples can be tested locally by running a [local server](https://developer.mozilla.org/en-US/docs/Learn/Common_questions/Tools_and_setup/set_up_a_local_testing_server#using_python) to serve your directory of choice.

If you modify any `.wat` files for testing you will need to generate a corresponding `.wasm` file, replacing the existing version in the folder.
For most examples, this can be done using the `wat2wasm` tool, which is part of the [WABT: The WebAssembly Binary Toolkit](https://github.com/WebAssembly/wabt/) (for setup/usage see [Converting the text .wat into a binary .wasm file](https://developer.mozilla.org/en-US/docs/WebAssembly/Text_format_to_Wasm#converting_the_text_.wat_into_a_binary_.wasm_file) on MDN and the readme in the WABT GitHub repo.

Note that some examples use features that are still considered optional.
These are listed in the [supported proposals](https://github.com/WebAssembly/wabt/#supported-proposals) section on the WABT README.md, along with the flags used to invoke them.
For example, to build WASM for the [multi-memory](https://github.com/mdn/webassembly-examples/blob/main/understanding-text-format/multi-memory.wat) example you will need to specify the `--enable-multi-memory` flag as shown:

```sh
wat2wasm --enable-multi-memory multi-memory.wat
```