Question

For some reason the second for loop is starting at 1. I do realize that first for loop i starts at one. That’s is meant to be. However, even though j for loop says to start at 0, it starts at 1 anyways.

var findWinners = function (playersRay) {
    var players = playersRay;
    var results = new Array();

    //getdealers dealers hand and info
    var dealerHand = players[0]
    var dealerScore = dealerHand.getScore()
    var dealerBust = dealerScore > 21 ? true : false;

    //loops through all players; skips dealer (array position 0)
    var numPlayers = players.length;
    for (var i=1; i<numPlayers; i++) {
            //loops through all the players hands.
            //player might have more than 1 hand if he splits his cards
        var player = players[i];
        var numHands = player.length;
        results[i] = new Array();

        for (var j=0; j<numHands; j++)
            var handScore = player[j].getScore();

            if (handScore > 21) {
                results[i][j] = false;              
            }
            else if (dealerScore > 21) {
                results[i][j] = true;
            }
            else if (handScore > dealerScore) {
                results[i][j] = true;
            }
            else {
                results[i][j] = false;
            }
    }
    return results;
}

It returns this: [undefined, [undefined, true]]

It should return this: [undefined, [true]]

Just in case you want to know. A sample playersRay is: [Object, [Object]]
The object has information about the dealer’s or player’s blackjack hand.

Link to full code: https://docs.google.com/open?id=0BxvwY0fUFc3aMTdTOXU0b0ttamM

Answer 1

In Javascript, when you omit the curly braces around a statement, it only runs the first line. The behavior appears to omit only the first index, when I suspect there’s only two. So if you add some more to iterate, you should notice it’s actually just running the last index.

For example:

for (var i = 0; i < 10; i++)
    console.log('First line: ', i);

    console.log('Second line: ', i);

http://jsfiddle.net/MMQD8/

Gives:

First line: 0
First line: 1
First line: 2
First line: 3
First line: 4
First line: 5
First line: 6
First line: 7
First line: 8
First line: 9
Second line: 10

MDN explains it thusly:

statement

A statement that is executed as long as the condition
evaluates to true. To execute multiple statements within the loop, use a block
statement ({ … }) to group those statements.