Javascript for Statement Roll a Six-Sided Die 6000 times

let frequency1 = 0; 
let frequency2 = 0;
let frequency3 = 0;
let frequency4 = 0;
let frequency5 = 0; 
let frequency6 = 0;
let face;//from   w  w w.  ja  va2 s  .  com

// roll die 6000 times and accumulate results
for ( let roll = 1; roll <= 6000; roll++ )   
{                                             
   face = Math.floor( 1 + Math.random() * 6 );

   switch ( face ) 
   {
      case 1:
         ++frequency1;
         break;
      case 2:
         ++frequency2;
         break;
      case 3:
         ++frequency3;
         break;
      case 4:
         ++frequency4;
         break;
      case 5:
         ++frequency5;
         break;
      case 6:
         ++frequency6;
         break;
   } // end switch
} // end for

console.log(frequency1);
console.log(frequency2);
console.log(frequency3);
console.log(frequency4);
console.log(frequency5);
console.log(frequency6);