TypeScript - iterate enum

interface IIteration {

    (name : string, value : string | number) : void;

}

​

class EnumUtils {

    private static EXPRESSION = /^[0-9]+$/g;

​

    public static iterate<T>(type : T, iteration : IIteration) {

​

        for(let name in type) {

            if(name.match(this.EXPRESSION))

                continue;

            iteration(name, <any>type[name]);

        }

    }

}

enum Fruit {

    Apple,

    Orange,

    Cherry

}

​

enum Car {

    BMW = 'BMW',

    Ford = 'FORD',

    Porshe = 'PORSHE'

}

​

enum Digit {

    One = 1,

    Two = 2,

    Three = 3

}

​

let iteration = (name : string, value : string | number) : void => {

    console.log(`${name} : ${value}`);

};

​

EnumUtils.iterate(Fruit, iteration);

EnumUtils.iterate(Car, iteration);

EnumUtils.iterate(Digit, iteration);

​

// or just:

// EnumUtils.iterate(Fruit, console.log);

// EnumUtils.iterate(Car, console.log);

// EnumUtils.iterate(Digit, console.log);

Apple : 0

Orange : 1

Cherry : 2

​

BMW : BMW

Ford : FORD

Porshe : PORSHE

​

One : 1

Two : 2

Three : 3