Object.fromEntries: return type does not account for symbols

TypeScript/src/lib/es2019.object.d.ts

    
           fromEntries<T = any>(entries: Iterable<readonly [PropertyKey, T]>): { [k: string]: T };

const record = Object.fromEntries([[Symbol.for("1"), "hi"]]);
console.log(record[Symbol.for("1")]);

error: TS2538 [ERROR]: Type 'symbol' cannot be used as an index type.
console.log(record[Symbol.for("1")]);
                   ~~~~~~~~~~~~~~~

the return type should account for objects built with symbols for keys (e.g. through a generic type or something)

There's a whole template you're supposed to fill out when you file a bug here, to help the TS team triage and respond.

Anyway I don't think much can be done here until something like #35909 and #26797 are dealt with. Also relevant: #37457, with the comment: "Symbols are still dropped on the floor, just like the rest of the compiler."

Weird, I was never prompted with a template. Maybe that is because I made the issue from clicking the referenced line of code...

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

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Object.fromEntries: return type does not account for symbols #44405

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Object.fromEntries: return type does not account for symbols #44405

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jcalz commented on Jun 3, 2021

mfulton26 commented on Jun 4, 2021

typescript-bot commented on Jun 13, 2021

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