如何在ChartJS中跳过x轴标签

var chart = new Chart(ctx, {
    type: 'bar',
    data: {
        labels: ['Label 1', 'Label 2', 'Label 3', 'Label 4', 'Label 5'],
        datasets: [{
            label: 'Dataset',
            data: [10, 20, 30, 40, 50]
        }]
    },
    options: {
        scales: {
            xAxes: [{
                ticks: {
                    callback: function(value, index, values) {
                        // 跳过索引为2和4的标签
                        if (index === 2 || index === 4) {
                            return '';
                        }
                        return value;
                    }
                }
            }]
        }
    }
});