EN
TypeScript - convert enum to string
12 points
In TypeScript it is possible to get enum name in following way.
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enum Fruit {2
Apple, // 03
Orange, // 14
Cherry // 25
}6
7
enum Pet {8
Dog = 'Dog',9
Cat = 'Cat',10
Rabbit = 'Rabbit'11
}12
13
console.log(Fruit[Fruit.Apple]);14
console.log(Fruit[Fruit.Orange]);15
console.log(Fruit[Fruit.Cherry]);16
17
console.log(Pet[Pet.Dog]);18
console.log(Pet[Pet.Cat]);19
console.log(Pet[Pet.Rabbit]);Output:
xxxxxxxxxx1
Apple2
Orange3
Cherry4
Dog5
Cat6
Rabbitxxxxxxxxxx1
class EnumReflection<T> {2
private names : any = { };3
4
public constructor(object : T) {5
for(let name in object) {6
let value = object[name];7
8
this.names[value] = name;9
}10
}11
12
public getName(value : string | number) : string {13
return this.names[value] || null;14
}15
}Example:
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enum Fruit {2
Apple,3
Orange,4
Cherry5
}6
7
let reflection = new EnumReflection(Fruit);8
9
console.log(reflection.getName(Fruit.Apple));10
console.log(reflection.getName(Fruit.Orange));11
console.log(reflection.getName(Fruit.Cherry));12
Output:
xxxxxxxxxx1
Apple2
Orange3
Cherry