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WebAssembly (WASM) for High Performance Apps · Lesson

Loading & Running WASM in JavaScript

Learn how to load your compiled WASM module in a web browser using JavaScript and invoke its exported functions.

Getting WASM into the Browser

Welcome! You've learned how to compile C/C++ code into a .wasm file. Now, it's time to bring that powerful WebAssembly module to life in your web browser.

This lesson will guide you through loading your .wasm module using JavaScript and invoking its functions.

Browser's WASM Gateway

Modern web browsers provide a global WebAssembly object. This object is your primary interface for interacting with WebAssembly modules.

  • It allows you to compile, instantiate, and manage WASM code.
  • We'll use its methods to fetch and load our .wasm file into the browser's runtime.

All lessons in this course

  1. Compiling C/C++ to WASM with Emscripten
  2. Loading & Running WASM in JavaScript
  3. Basic Data Exchange: Primitives
  4. Calling JavaScript Functions from C/C++
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