How can I retrieve property values from an array?
const d = [{id: 'Cat'}, {id: 'Dog'}]
type ids = ??? //place code here, type should be 'Cat' | 'Dog'
(It would also be acceptable if it creates a const enum)
How can I retrieve property values from an array?
const d = [{id: 'Cat'}, {id: 'Dog'}]
type ids = ??? //place code here, type should be 'Cat' | 'Dog'
(It would also be acceptable if it creates a const enum)
By defining d using as const, you have the ability to extract data in this manner:
const d = [{id: 'Cat'}, {id: 'Dog'}] as const
type IDs = typeof d[number]["id"]
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