chart.js - ChartJS:如何显示标签，图例，标题？

Question

我很难弄清楚如何在我的Chart JS折线图中显示标签，图例和标题。我直接从example复制了代码(复制如下)。但是，标签“我的第一个数据集”没有显示在图表上的任何位置，因此我无法确定哪条线是哪条。我也尝试过在数据集中添加一个“标题”，但是没有运气。有人知道我在想什么吗？

var data = {
labels: ["January", "February", "March", "April", "May", "June", "July"],
datasets: [
    {
        label: "My First dataset",
        fillColor: "rgba(220,220,220,0.2)",
        strokeColor: "rgba(220,220,220,1)",
        pointColor: "rgba(220,220,220,1)",
        pointStrokeColor: "#fff",
        pointHighlightFill: "#fff",
        pointHighlightStroke: "rgba(220,220,220,1)",
        data: [65, 59, 80, 81, 56, 55, 40]
    },
    {
        label: "My Second dataset",
        fillColor: "rgba(151,187,205,0.2)",
        strokeColor: "rgba(151,187,205,1)",
        pointColor: "rgba(151,187,205,1)",
        pointStrokeColor: "#fff",
        pointHighlightFill: "#fff",
        pointHighlightStroke: "rgba(151,187,205,1)",
        data: [28, 48, 40, 19, 86, 27, 90]
    }
]};

谢谢，
萨斯瓦特

Answer 1

在选项中添加此参数

multiTooltipTemplate: "<%= datasetLabel %> - <%= value %>"