Working on TicTacToe in JavaScript/JQuery. Beginner programmer but couldn't find this online.
At the moment I have a normal array called "game_board". The array has 9 values which are 0-8. It is not a 'hash'.
I'm looking into a loop or similar that checks if all values in array are not null. Should all values in the "game_board" array not be Null then the code should make an action such as [Alert("Draw")]. If any values in the array have a value the function should do nothing.
Here's my code attempt. Any ideas would be aweesome. My attempt is the theory that the loop breaks if it finds a null value. If it does not find a null value it goes to ELSE and reports 'draw'
// check draw
for (var p = 0; p < 9; p++) {
if (game_board[p] === null) {
break;
}
else {
alert("Draw");
}
}
Thanks very much. I know this maybe a basic question but appreciate any answers.
Please excuse my newness! Not 100% sure of the logic. Perhaps something with Jquery will help!
Use Array.some to check if any of the values are null:
var isAtLeastOneNull = game_board.some(function(i) { return i === null; });
Alternatively, use Array.every to do the reverse check:
var areAllNotNull = game_board.every(function(i) { return i !== null; });
Demo:
var game_board = [true, true, true, true, true, true, true, null, true];
document.writeln('There is at least one null item: ' + game_board.some(function(i) { return i === null; }));
document.writeln('<br />');
game_board = [true, true, true, true, true, true, true, true, true];
document.writeln('There is at least one null item: ' + game_board.some(function(i) { return i === null; }));Collected from the Internet
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