Rust WebAssembly as a Portable Bridge: JavaScript, Host Calls, Serialization, and Limits

A practical two-hour session on Rust WebAssembly as a Portable Bridge, focused on JavaScript, Host Calls, Serialization, and Limits. The session treats Rust as a native component exposed through C-compatible boundaries, with attention to packaging, ownership, host-runtime tests, and failure handling.

Audience: entry-level and intermediate developers who want a practical engineering session, not a language tour.

Outcomes:

• Explain the practical boundaries of Rust WebAssembly as a Portable Bridge
• Apply JavaScript in a small working example
• Apply Host Calls in a small working example
• Apply Serialization in a small working example

Format: two hours with a short framing walkthrough, a concrete example, discussion of tradeoffs, and a closing checklist for practice.