How to change nan values to 0 in chart.js?

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var ctx = document.getElementById('myChart').getContext('2d');

var myChart = new Chart(ctx, {
    type: 'bar',
    data: {
        labels: ['January', 'February', 'March', 'April', 'May', 'June', 'July'],
        datasets: [{
            label: 'Sales',
            data: [5, NaN, 8, NaN, 10, 12, NaN],
            backgroundColor: 'rgba(54, 162, 235, 0.2)',
            borderColor: 'rgba(54, 162, 235, 1)',
            borderWidth: 1
        }]
    },
    options: {
        scales: {
            y: {
                ticks: {
                    min: 0,
                    callback: function(value, index, values) {
                        return isNaN(value) ? 0 : value;
                    }
                }
            }
        }
    }
});