When Is WebAssembly Going to Get DOM Support? – Communications of the ACM

WebAssembly and DOM Support

WebAssembly (Wasm) is considered ready for production usage in Web applications, despite requiring integration with a Web page and its APIs, such as the DOM.

However, the question remains whether Wasm will ever get direct DOM access. The answer is twofold:

Wasm might never get direct DOM access
, yet
Wasm is ready for all kinds of Web-integrated uses
, having supported calling out to the DOM since its inception.

WebAssembly was designed with a strict separation from JavaScript, unlike asm.js, which is embedded in JavaScript. The core Wasm bytecode format is clean of JavaScript's legacy, but as part of the Web platform, it is intended for Web-integrated uses.

Author's summary: WebAssembly is ready for production use in Web applications despite DOM access limitations.

more

Communications of the ACM Communications of the ACM — 2025-10-27