JavaScript has dynamic switch case

dynamic-switch.js

// This example shows that in javascript even
// the case expressions in the switch is dynamic

'use strict';

let prefix = 'label';

function getLabel(n) { return prefix + n };

console.log(getLabel(1)); // prints "label1"

function print(label){
    switch(label){
        case getLabel(1): console.log(1); break;
        case getLabel(2): console.log(2); break;
        default: console.log("HELP ME!!!");
    }
}

print('label2'); // prints 2

prefix = 'cow';

print('label2'); // prints "HELP ME!!!"

print('cow2'); // prints 2