Implement RemoveIndexSignature<T> , exclude the index signature from object types.
For example:
type Foo = {
[key: string]: any
foo(): void
}
type A = RemoveIndexSignature<Foo> // expected { foo(): void }
import type { Equal, Expect } from '@type-challenges/utils'
type Foo = {
[key: string]: any
foo(): void
}
type Bar = {
[key: number]: any
bar(): void
0: string
}
const foobar = Symbol('foobar')
type FooBar = {
[key: symbol]: any
[foobar](): void
}
type Baz = {
bar(): void
baz: string
}
type cases = [
Expect<Equal<RemoveIndexSignature<Foo>, { foo(): void }>>,
Expect<Equal<RemoveIndexSignature<Bar>, { bar(): void, 0: string }>>,
Expect<Equal<RemoveIndexSignature<FooBar>, { [foobar](): void }>>,
Expect<Equal<RemoveIndexSignature<Baz>, { bar(): void, baz: string }>>,
]