javascript - Chart.js无法启动

我已经在Bootstrap 4项目中包含Chart.js。但是由于某种原因，我无法启动chart.js。我似乎找不到解决方法。以下是我使用的代码。

<div id="sample-chart"></div>

<style>


#sample-chart{
 height: 300px;
 width: 500px;
}
</style>

<script>
 var areaData = {
   labels: ["1", "2", "3", "4", "5"],
   datasets: [{
       data: [60, 63, 68, 53, 52],
       backgroundColor: [
         '#D6EEF3'
       ],
       borderColor: [
         '#1DBFD3'
       ]
     }
   ]
 };
 var areaOptions = {
   responsive: true,
   maintainAspectRatio: false
 }
 var sampleChartCanvas = $("#sample-chart").get(0).getContext("2d");
 var sampleChart = new Chart(sampleChartCanvas, {
   type: 'line',
   data: areaData,
   options: areaOptions
 });
</script>

最佳答案

ChartJS在div标签上不起作用，因此您需要使用canvas而不是div标签。在这里您可以找到图表examples。

<canvas id="sample-chart" height="300" width="500">

<script>
var areaData = {
 labels: ["1", "2", "3", "4", "5"],
 datasets: [{
     data: [60, 63, 68, 53, 52],
     backgroundColor: [
       '#D6EEF3'
     ],
     borderColor: [
       '#1DBFD3'
     ]
   }
 ]
};
var areaOptions = {
 responsive: true,
 maintainAspectRatio: false
}
var sampleChartCanvas = $("#sample-chart").get(0).getContext("2d");
var sampleChart = new Chart(sampleChartCanvas, {
 type: 'line',
 data: areaData,
 options: areaOptions
});
</script>