TypeCheck: any number can be assigned to number-value enums

[git9am]

Bug Report

🔎 Search Terms

enum, number

🕗 Version & Regression Information

• This is the behavior in every version I tried, and I reviewed the FAQ for entries about enums

⏯ Playground Link

Playground link with relevant code

💻 Code

enum TypeA {
    A = 0,
    B = 1,
    C = 2,
}

const valueA1: TypeA = 4; // <-- no error
const valueA2: TypeA = '4';

enum TypeB {
    A = '0',
    B = '1',
    C = '2',
}

const valueB1: TypeB = '4';
const valueB2: TypeB = 4;

🙁 Actual behavior

The number can be assigned to an enum without errors.

🙂 Expected behavior

Errors.

[MartinJohns]

Duplicate of #26362, which provides plenty of reasoning for this behaviour. Used search terms: enum number in:title

[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.