When Is WebAssembly Going to Get DOM Support?

9 months ago

WebAssembly (Wasm) is designed with a strict separation from JavaScript, unlike asm.js which is embedded in JavaScript.
Wasm can call JavaScript APIs, including the DOM, through JavaScript glue code, allowing seamless integration.
Wasm's core goal is to optimize performance for web applications, not to eliminate JavaScript entirely.
Wasm modules declare imports and exports, and JavaScript can instantiate these modules to provide necessary APIs.
Wasm initially supported only numeric types (i32, i64, f32, f64), but can still interact with JavaScript APIs that handle objects.
Exception handling, blocking operations, and garbage-collected values have been added to Wasm to improve performance.
The Wasm Component Model is being explored for more direct access to web APIs, but it's still under development.
Web APIs are currently native to JavaScript, making direct Wasm access complex without significant effort.
The W3C Wasm Community Group oversees Wasm's development, focusing on consensus and incremental improvements.
Wasm is best used as an implementation detail, with build tools generating both JavaScript and Wasm for web applications.

Hasty Briefsbeta