Tic-Tac-Toe

function ticToc(input) {

    let ticToc = [
        [false, false, false],
        [false, false, false],
        [false, false, false]
    ];

    function checkTicToc() {
        let isOver = '';
        for (let s = 0; s < ticToc.length; s++) {
            if (!ticToc[s].includes(false)) {
                isOver += 'Q';
            } else {
                isOver += 'G';
            }
        }
        if (isOver === 'QQQ') {
            return 'QQQ';
        }

        for (let i = 0; i < ticToc.length; i++) {
            let check = '';
            for (let h = 0; h < ticToc.length; h++) {
                check += ticToc[i][h];
            }
            if (check === 'XXX') {
                return 'X';
            } else if (check === 'OOO') {
                return 'O';
            } else {
                check = '';
            }
            for (let v = 0; v < ticToc.length; v++) {
                check += ticToc[v][i];
            }
            if (check === 'XXX') {
                return 'X';
            } else if (check === 'OOO') {
                return 'O';
            } else {
                check = '';
            }
            for (let dl = 0; dl < ticToc.length; dl++) {
                check += ticToc[dl][dl];
            }
            if (check === 'XXX') {
                return 'X';
            } else if (check === 'OOO') {
                return 'O';
            } else {
                check = '';
            }
            for (let dr = ticToc.length - 1; dr >= 0; dr--) {
                check += ticToc[dr][dr];
            }
            if (check === 'XXX') {
                return 'X';
            } else if (check === 'OOO') {
                return 'O';
            } else {
                check = '';
            }
        }
        return '';
    }

    function changePlayerTurn() {
        if (playerTurn === 'X') {
            return 'O';
        } else {
            return 'X';
        }
    }

    let playerTurn = 'X';
    for (let i = 0; i < input.length; i++) {
        let win = checkTicToc();
        if(win === 'QQQ') {
            console.log('The game ended! Nobody wins :(');
            for (let j = 0; j < ticToc.length; j++) {
                console.log(ticToc[j].join('\t'));
            }
            break;
        }
        if (win) {
            console.log(`Player ${win} wins!`);
            for (let j = 0; j < ticToc.length; j++) {
                console.log(ticToc[j].join('\t'));
            }
            break;
        }
        let player = input[i].split(' ').map(Number);
        if(ticToc[player[0]][player[1]]) {
            console.log('This place is already taken. Please choose another!');
        } else {
            ticToc[player[0]][player[1]] = playerTurn;
            playerTurn = changePlayerTurn();
        }
    }
    // if (!checkTicToc()) {
    //     console.log('The game ended! Nobody wins :(');
    //     for (let j = 0; j < ticToc.length; j++) {
    //         console.log(ticToc[j].join('\t'));
    //     }
    // }
}