The actual type of the function return value is inconsistent with the expected type

[lppking]

Bug Report

🔎 Search Terms

spread operator, incorrect type check information,

🕗 Version & Regression Information

• This is the behavior in every version I tried, and I reviewed the FAQ for entries about TS4.2.3

⏯ Playground Link

Playground link with relevant code

💻 Code

interface ListItem {
  name: string
  age: number
}

function test(): ListItem[] {
  const a = [{
    name: "name",
    age: 18
  }]
  return {
    ...a
  }
}

🙁 Actual behavior

• First of all, the expected return value type is an array, but there is no error message when returning an object
• Secondly, TypeScript seems to have an array attribute on the return value of the test function, which is a bit abnormal

🙂 Expected behavior

I hope that the type information can be matched correctly, and the corresponding type error message will be given，thanks

[jcalz]

Looks like a duplicate of #35778.