JSFiddle - React, Tailwind, and code Playground

HTML

<canvas id="radarChartTest" width="800" height="600"></canvas>
<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.8.0/Chart.min.js"> </script>
<script>
	function radarChartTest(categories, totals, chartToPopulate) {
    var chartDisplay = chartToPopulate;
    var newChart = new Chart(chartDisplay, {
        type: 'radar',
        data: {
            labels: categories,
            datasets: [
                {
                    data: totals,
                    label: "test"
                }
            ]
        }
    })
}

        radarChartTest(["A", "B", "C", "D"], [5, 10, 15, 20], document.getElementById("radarChartTest"));
</script>