Refresh the Bar Char in ChartJS (v2.6.0) Using Ajax Correct Way

I am refreshing my Bar Chart on change of a drop down. I just Want to know that am I doing it in correct way. In my code every time I am replacing my existing canvas with new one. Is there any better way to achieve same thing?

My JS Code:

var chart_= function () {

    $('#canvas_id').replaceWith('<canvas id="canvas_id" style="height:280px"></canvas>');
    $.ajax({
        type: 'POST', //post method
        url: 'url', //ajaxformexample url
        dataType: "json",
        success: function (result, textStatus, jqXHR)
        {
            // GENERATE CHART DATA
            var labels = result.obj.map(function (e) {
                return e.label;
            });
            var data = result.obj.map(function (e) {
                return e.data;
            });
            new Chart($("#canvas_id"), {
                type: 'bar',
                options: options_object,
                data: {
                    labels: labels,
                    datasets: [
                        {
                            label: "",
                            backgroundColor: '#00c0ef',
                            data: data
                        }
                    ]
                }

            });

        }
    });
};