mdn/content

Document js-types WebAssembly proposal

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#41157 opened on Sep 16, 2025

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Content:wasmdocument not writtenhelp wanted

Description

MDN URL

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

What specific section or headline is this issue about?

No response

What information was incorrect, unhelpful, or incomplete?

The specification that is linked doesn't mention this method.

What did you expect to see?

The method defined in the specification, but it's no longer there.

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

The commit that removed it: https://github.com/WebAssembly/spec/commit/24be4255901e9db4c9aab23b838f2bcc46d9c6e4

Do you have anything more you want to share?

No response

MDN metadata

Contributor guide

Tech stack
javascriptwasm
Domain
documentation
Issue type
documentation
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
under 1 hour
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
fresh
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
clear
Prerequisites
familiarity with GitHub pull request workflowbasic knowledge of WebAssembly
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
85
Research direction
The issue identifies that the `type()` method was removed from the WebAssembly specification. The commit 24be4255901e9db4c9aab23b838f2bcc46d9c6e4 shows the removal. The task is to update the MDN page at `files/en us/webassembly/reference/javascript interface/tag/type/index.md` to reflect that this method is no longer part of the spec, potentially adding a note about its removal or marking it as deprecated. No external solutions are needed.