microsoft / microsoft/TypeScript-Website

CRITICAL: TypeScript `ES3` Target in Playground Broken

Open
#3,571 0 comments 0 reactions 0 assignees View on GitHub

Nobody has claimed this yet.

Dominant language
TypeScript
Stars
2.6k
Forks
1.5k
Avg merge
2d 2h
Merged PRs (30d)
7

Description

Page URL:
https://www.typescriptlang.org/play

Issue:
When setting the compilation target to ES3 in the TypeScript Playground, the output panel fails to emit or downlevel code correctly.

Repro Screenshot
Image

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.

Research direction

Start at the TypeScript Playground URL and reproduce the failure by selecting the ES3 compilation target. Inspect the Playground's target-selection and output-panel behavior, then verify that ES3 code is emitted and downlevelled correctly without breaking other targets.

Written by the indexing model from the issue text.

Assessment

Tech stack
typescript
Domain
tooling, web-dev
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Quiet
Clarity
Mostly clear
Newbie friendliness
58/100

Get new issues in your inbox

A short digest of beginner-friendly GitHub issues.