"Private identifers are only available when"... should not occur in .d.ts files

Repository metrics

Stars

108,860 stars (108,860 stars)

PR merge metrics

Avg merge 6d 17h (Avg merge 6d 17h)9 merged PRs in 30d (9 merged PRs in 30d)

Description

Contributor guide

Research direction

Examine the error message 'Private identifiers are only available when targeting ECMAScript 2015 or higher' and locate where it is emitted in the compiler's source code. Investigate why it appears incorrectly in .d.ts files by tracing the code path for declaration files and checking if the condition for emitting this error should be skipped for .d.ts output.

Tech stack

typescript

Domain

tooling

Issue type

Bug

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.

1-3 hours

Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.

Active

ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.

Clear

Prerequisites

Git

Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.

65