Here's the code in the TS playground too, click here.
Get the Enum key values as union types (for function parameter)
I have managed to achieve this with the animals object by using key in to extract the key as the enum ANIMALS value. However, I am struggling to find a way to do the same thing for the function parameter animalKey, where it should be something like
'cat' | 'lion' | 'parrot' | 'shark' | 'snail'If anyone could help me out, it would be greatly appreciated.
enum ANIMALS {
CAT = 'cat',
LION = 'lion',
PARROT = 'parrot',
SHARK = 'shark',
SNAIL = 'snail'
}
interface iBaseAnimal {
name: string,
gender: 'male' | 'female'
wild: boolean
}
interface iShark extends iBaseAnimal {
max_gills: number
}
interface iParrot extends iBaseAnimal {
wing: {
length: 120,
unit: 'cm'
}
}
// DONE Overwritting property when extending base props with Omit
interface iSnail extends Omit<iBaseAnimal, 'gender'> {
gender: 'hermaphrodite'
}
interface iAnimals {
animals: {
// DONE Enum values as key
// PENDING way to interpolate proper interface value base on the enum key
[key in ANIMALS]: iBaseAnimal
},
// PENDING way to get Enum values as union types (similar to [key in ANIMALS] but for function param)
getAnimal: (animalKey:'lion', options: any) => void
}