parameter "address" is not mentioned

[palisarbaro]

MDN URL

https://developer.mozilla.org/en-US/docs/WebAssembly/Reference/JavaScript_interface/Memory/Memory

What specific section or headline is this issue about?

parameters of WebAssembly.Memory constructor

What information was incorrect, unhelpful, or incomplete?

Recently, 64-bit address space became available for WASM memory.
You can use it like this:

var memory = new WebAssembly.Memory({ initial: 2n, maximum: 200000n, address: "i64" });

The article doesn't mention the address: "i64"parameter.

What did you expect to see?

address: "i64"|"i32"
when address=="i64" initial and maximum should be BigInt

Do you have any supporting links, references, or citations?

https://www.w3.org/TR/wasm-js-api/#memories
https://webassembly.org/news/2025-09-17-wasm-3.0/

Do you have anything more you want to share?

No response

MDN metadata

Page report details

• Folder: en-us/webassembly/reference/javascript_interface/memory/memory
• MDN URL: https://developer.mozilla.org/en-US/docs/WebAssembly/Reference/JavaScript_interface/Memory/Memory
• GitHub URL: https://github.com/mdn/content/blob/main/files/en-us/webassembly/reference/javascript_interface/memory/memory/index.md
• Last commit: 3e543cd
• Document last modified: 2025-06-23T16:41:39.000Z