Obtener la clave de ENUM Tyumcript
let enums = Object.keys(SomeEnum).filter(x => x === yourValue));
Lazy Lizard
let enums = Object.keys(SomeEnum).filter(x => x === yourValue));let enums = Object.keys(SomeEnum).filter(x => !(parseInt(x) >= 0));
console.log("Enums", enums); //Enums: A, B, C, D