blackjack calc
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function mapping (s){
if(s === "1"){
return 1;
}
else if(s === "2"){
return 2;
}
else if(s === "3"){
return 3;
}
else if(s === "3"){
return 3;
}
else if(s === "4"){
return 4;
}
else if(s === "5"){
return 5;
}
else if(s === "6"){
return 6;
}
else if(s === "7"){
return 7;
}
else if(s === "8"){
return 8;
}
else if(s === "9"){
return 9;
}
else if(s === "10"){
return 10;
}
else if(s === "K" || s === "Q" || s === "J"){
return 10;
}
else if(s === "A"){
return 11;
}
}
function handValue (hand) {
var total = 0;
for(var i = 0; i < hand.length; i++){
total += mapping(hand[i]);
}
for(var j = 0; j < hand.length && total > 21; j++){
if(hand[j] === "A")
total -= 10;
}
return total;
}
console.log(handValue(["2", "3", "A", "A", "A"]));
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