JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.2.1/Chart.min.js"></script>
<script
			  src="https://code.jquery.com/jquery-3.1.0.min.js"
			  integrity="sha256-cCueBR6CsyA4/9szpPfrX3s49M9vUU5BgtiJj06wt/s="
			  crossorigin="anonymous"></script>
<canvas id="customer_chart" height="100"></canvas>

JavaScript

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

Chart.pluginService.register({
    beforeInit: function(chart) {
    	// clones the dataset
    	var newdataset = jQuery.extend(true, {}, chart.config.data.datasets[0]);
        chart.config.data.datasets[1] = newdataset;
        for (var i = 0; i < chart.config.data.datasets[1].data.length; i++) {
        	// data * -1
        	chart.config.data.datasets[1].data[i] *= -1;
        }
        chart.config.data.datasets[1].label = "";
    }
});

var chart = new Chart(ctx, {
    type: 'line',
    data: {
        labels: ['', 'Conference', 'Webinar', 'Trial'],
        datasets: [{
            label: 'Pipeline',
            lineTension: 0.3,
            data: [0, 10, 20, 15],
            backgroundColor: [
                'rgba(255, 99, 132, 0.2)',
            ],
            borderColor: [
                'rgba(255,99,132,1)',
            ],
        }],
    }
})

console.log(chart);