use [""] in object will lose ts check about typescript HOT 5 OPEN

I'm not sure what's best here. We show

(property) a1: 1

But a2 isn't a property; it's an index signature. It'd be confusing to just show

number

here since "a2" is not a number.

We've never had reason to show (index signature) or whatnot here.

This doesn't seem like something people commonly encounter as a problem.

from typescript.

Note that this isn't just about twoslash hints, but extends to hover tips as well. It is kind of frustratingly inconsistent (for no apparent reason, from an end-user point of view) that hovering over ["a1"] shows what type of value it's accessing, but not ["a2"]. If you want to see that type you have to assign it to a const first and hover over that.

from typescript.

How about number from [x: string]: number? Works similarly to how we show type parameters as T in f<T>(): void.

from typescript.

How about number from [x: string]: number? Works similarly to how we show type parameters as T in f<T>(): void.怎么样 number from [x: string]: number ？工作方式类似于我们将类型参数显示为 T in f<T>(): void .

This seems intuitive.
While I'm not sure what's best to show, I'm a little confused that typescript shows me nothing when I encounter this situation.

from typescript.

More information: If you destruct the object, then the type will be shown:

Playground

from typescript.