[Chartjs]-How can I add a unit to the end of my Y Axis values in ChartJS?

by

10👍

I was able to figure this out, I needed to add a callback under my ticks object like so

                    ticks: {
                        beginAtZero:true,
                        callback: function(value, index, values) {
                                return value + '°';
                        }
                    },

I hope this helps anyone who has a similar problem.

1👍

I tried this in Angular 7 and This works for me:

options: {
  tooltips: {
    callbacks: {
       label: (tooltipItems, data) => {
            return data.datasets[tooltipItems.datasetIndex].data[tooltipItems.index] + ' GB';
            }
        },
  }

0👍

    var data = {
        labels: ["1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11", "12", "13", "14", "15", "16", "17", "18", "19", "20"],
    datasets: [
        {
            lineTension: 0.1,
                backgroundColor: grd,
                borderCapStyle: 'butt',
                borderDash: [],
                borderDashOffset: 0.0,
                borderJoinStyle: 'miter',
                pointBorderColor: "rgba(75,192,192,1)",
                pointBackgroundColor: "#fff",
                pointBorderWidth: 1,
                pointHoverRadius: 5,
                pointHoverBackgroundColor: "rgba(75,192,192,1)",
                pointHoverBorderColor: "rgba(220,220,220,1)",
                pointHoverBorderWidth: 2,
                pointRadius: 1,
                pointHitRadius: 10,
                data: [100, 250, 250, 400, 400, 400, 500, 700, 900, 1000, 1000, 1300, 1300, 1100, 900, 700, 500, 300, 100, 0],
                spanGaps: false
        }
    ]
};

     var options = {
        animation: false,
        scaleLabel:
        function(label){return label.value.toString() +' °C';}
        
    };

    //Get the context of the canvas element we want to select
    var ctx = document.getElementById("myChart").getContext("2d");
    /*************************************************************************/
    var myLineChart = new Chart(ctx).Line(data, options);
    var grd = ctx.createLinearGradient(170.000, 600.000, 150.000, 0.000);
        grd.addColorStop(0.000, 'rgba(0, 255, 0, 1.000)');
    grd.addColorStop(0.200, 'rgba(191, 255, 0, 1.000)');
    grd.addColorStop(0.400, 'rgba(221, 255, 0, 1.000)');
    grd.addColorStop(0.600, 'rgba(255, 229, 0, 1.000)');
    grd.addColorStop(0.800, 'rgba(255, 144, 0, 1.000)');
    grd.addColorStop(1.000, 'rgba(255, 50, 0, 1.000)');
<script src="http://www.chartjs.org/assets/Chart.js"></script>
<canvas id="myChart" width="400" height="400"></canvas>

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