VueJs - Tic Tac Toe Game

HTML

<script type="text/javascript" src="https://unpkg.com/vue"></script>

<div id="app">
	<div>
		Turn: Player {{turn}}
	</div>

	<table border="1">
		<tr v-for="row in board">
			<td v-for="cell in row" @click="setVal(cell)">
				{{cell.value}}
			</td>
		</tr>
	</table>
  
  <br />
  <button @click="newGame()">New Game</button>
</div>

<script type="text/javascript">
	var App = new Vue({
		'el':'#app',
		data:{
			turn: 'X',
			board: [
				[ {value:''}, {value:''}, {value:''}],
				[ {value:''}, {value:''}, {value:''}],
				[ {value:''}, {value:''}, {value:''}],
			],
			chances: [
				[[0,0], [0,1], [0,2]],
				[[1,0], [1,1], [1,2]],
				[[2,0], [2,1], [2,2]],
				[[0,0], [1,0], [2,0]],
				[[0,1], [1,1], [2,1]],
				[[0,2], [1,2], [2,2]],
				[[0,0], [1,1], [2,2]],
				[[0,2], [1,1], [2,0]]
			],
		},
		methods:{
			setVal: function(cell){
				if(cell.value){
					alert('the cell is not empty');
					return;
				}

				cell.value = this.turn;
				this.checkWinner();
				this.turn = (this.turn == 'X') ? 'O' : 'X';
			},
			checkWinner: function(){
				this.chances.forEach(function(chance, index){
					var check = chance.every(function(item){
						return App.board[ item[0] ][ item[1] ].value == App.turn;
					});

					if(check){
						alert(App.turn + ' Wins!');
					}
				});
			},
      newGame:function(){
      	location.reload();
      }
		}
	});
</script>

<style>
	td{
		width: 50px;
		height: 50px;
		text-align: center;
	}
</style>