var class1 = {

    GetImportantValue: () => 1

};

var class2 = {

    GetImportantValue: () => 2

};

var class3 = {

    GetImportantValue: () => 3

};

var class4 = {

    GetImportantValue: () => 4

};

var class5 = {

    GetImportantValue: () => 5

};

​

function GetImportantValue1() {

    return 1;

}

​

function GetImportantValue2() {

    return 2;

}

​

function GetImportantValue3() {

    return 3;

}

​

function GetImportantValue4() {

    return 4;

}

​

function GetImportantValue5() {

    return 5;

}

​

getImportantValueSwitch = (myClassEnum) => {

    switch (myClassEnum.type) {

        case 'MyClass1':

            return GetImportantValue1();

        case 'MyClass2':

            return GetImportantValue2();

        case 'MyClass3':

            return GetImportantValue3();

        case 'MyClass4':

            return GetImportantValue4();

        case 'MyClass5':

            return GetImportantValue5();

    }

}

​

getImportantValuePolymorphism = (myClass) => myClass.GetImportantValue();