Typescript, enums and string

Question

I have a hard time converting a string coming from the env variable to enum.

Here's the enum:

enum Environment {
    Test = 1,
    Development,
    Production
}

export default Environment;

And here's what I've been trying:

export default class GlobalParameters {
    public static Env: Environment = Environment[<string>process.env.NODE_ENV];
}
console.log(process.env.NODE_ENV) // Gives "Development"
let str = String(process.env.NODE_ENV); // Gives "Development"
console.log(Environment[str])  //Gives undefined
Object.seal(GlobalParameters);

Answer 1

Your code seems to work fine:

enum Environment {
    Test = 1,
    Development,
    Production
}

console.log(Environment[2]) // "Development"
let str = String(Environment[2]);
console.log(str); // "Development"
console.log(Environment[str]) // 2

( code in playground )

Answer 2

Nevermind, when I was defining the environment variable in the command line it must have added some whitespace characters, because when I changed retrieving string to

let str: string = String(process.env.NODE_ENV).replace(" ", "");

It works fine.