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

Incorrect Javascript syntax highlighting with typeof value and less than (or equal to) operator

Open
#1,050 2 comments 0 reactions 0 assignees View on GitHub

Nobody has claimed this yet.

Assessment

Difficulty
3/5
Estimated time
1-2 days
Newbie friendliness
35/100
Issue type
Bug
Clarity
Mostly clear
Activity status
Stale
Tech stack
typescript
Domain
tooling

Research direction

Reproduce the snippet in VS Code with all extensions disabled, then inspect the TypeScript TextMate grammar used by this repository. Compare the highlighting around typeof and the comparison operator with the issue screenshots; done means the expression is highlighted consistently with the intended JavaScript syntax.

Written by the indexing model from the issue text.

Description

Does this issue occur when all extensions are disabled?: Yes

  • VS Code Version: 1.96.2
  • OS Version: macOS 15.3.2 (24D81), Darwin arm64 24.3.0

Steps to Reproduce:

x = typeof y < 'z';
if (x) {
} else {
}

Image

Image

Dominant language
TypeScript
Stars
471
Forks
149
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.