String negative number as index produces wrong declaration

[christianalfoni]

TypeScript Version: 3.8.3

Search Terms: decleration, object, index, negative number

Code

export const rotate = {
  "-180": "-180deg",
  "-90": "-90deg",
  "-45": "-45deg",
  "0": "0",
  "45": "45deg",
  "90": "90deg",
  "180": "180deg",
};

Expected behavior:

Should produce the following decleration:

export declare const rotate: {
    "-180": string;
    "-90": string;
    "-45": string;
    0: string;
    45: string;
    90: string;
    180: string;
};

Actual behavior:

Missing quotes, causing errors in the declaration

export declare const rotate: {
    -180: string;
    -90: string;
    -45: string;
    0: string;
    45: string;
    90: string;
    180: string;
};

[a-tarasyuk]

The fix for the negative numbers was added in this PR #37936 (#37866)

cc @RyanCavanaugh

[nmain]

Works in nightly: Playground Link

The issue template does ask you to try in nightly before reporting a bug 😃

[christianalfoni]

Great to hear it is fixed! 😄

Sorry, but I did not understand that this playground was different than the one on Typescript website? Cause that one only shows the JS output. I see this other Playground shows everything, is this some special playground?

[nmain]

Ahh yes, that's the beta version of the next playground. Eventually we all will have the power!

[typescript-bot]

This issue has been marked as a 'Duplicate' and has seen no recent activity. It has been automatically closed for house-keeping purposes.