Spreading an array inside an object where an array is expected doesn't cause a type error

[lucaslcode]

Bug Report

🔎 Search Terms

destructure, spread, object, array

🕗 Version & Regression Information

Using 4.5.5 but also in nightly playground

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

⏯ Playground Link

Playground link with relevant code

💻 Code

type MyType = {test: string}

const list: MyType[] = [{test: "a"}, {test: "b"}];

const x: Record<string, MyType[]> = {
  // object shouldn't be allowed?
  "hello": {
    ...list
  }
}

console.log(x);
x["hello"].map((el) => el);
// map doesn't exist on object

🙁 Actual behavior

Spreading an array inside an object where an array is expected works, and the type information is then incorrect.

🙂 Expected behavior

Spreading an array inside an object where an array is expected should give a type error.

[val-o]

It seems like duplicate of #9726

[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.