Hacktoberfest 2026: the issues maintainers tagged for October, open and beginner-friendly. Browse Hacktoberfest issues

No color on default template argument

Open
#994 1 comment 0 reactions 0 assignees View on GitHub

Nobody has claimed this yet.

Assessment

Difficulty
3/5
Estimated time
1-2 days
Newbie friendliness
42/100
Issue type
Bug
Clarity
Mostly clear
Activity status
Stale
Tech stack
typescript
Domain
tooling

Research direction

Reproduce the provided JSDoc example in a supported editor, then inspect the repository's TypeScript TextMate grammar files for handling of the @template default argument. Done means the marked default-argument range receives the expected syntax highlighting; verify the result with the example shown in the issue.

Written by the indexing model from the issue text.

Description

The default argument for template is not highlighted correctly even though it is correct syntax and it's recognized by the typescript language server

/**
 * @template Value
 * @template [Output=Value]
 **///       ^ from here on
class A {}

/** @typedef {A<Number>} Custom */
Dominant language
TypeScript
Stars
471
Forks
149
PR merge metrics
No merged PRs in 30d

Contributor guide

No contributing guide indexed for this repository

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

More from microsoft/TypeScript-TmLanguage

All issues in microsoft/TypeScript-TmLanguage

Similar issues

More TypeScript issues

Get new issues in your inbox

A short digest of beginner-friendly GitHub issues.