Scrabble Score

scrabbleScore.js

function scrabbleScore(str){
 var value = 0;
 for(i = 0 ; i< str.length; i++){
   switch (true){
     case( /[dg]/i.test(str[i])):
       value += 2;
       break;
     case( /[bcmp]/i.test(str[i])):
       value += 3;
       break;
     case( /[fhvwy]/i.test(str[i])):
       value += 4;
       break;
     case( /[k]/i.test(str[i])):
       value += 5;
       break;
     case( /[jx]/i.test(str[i])):
       value += 8;
       break;
     case( /[qz]/i.test(str[i])):
       value += 10;
       break;
     case( /[aeioulnrst]/i.test(str[i])):
       value += 1;
       break;
     
   }
 }
 return value;
}