Is there some way to extract property values from array?
const d = [{id: 'Cat'}, {id: 'Dog'}]
type ids = ??? //insert code here, type should be 'Cat' | 'Dog'
(It would also work if it generates a const enum)
CodePudding user response：
When you declare d with as const, you can extract the information like this:
const d = [{id: 'Cat'}, {id: 'Dog'}] as const
type IDs = typeof d[number]["id"]