抓取ChartJS插件中的标题

<script src="https://cdn.jsdelivr.net/npm/chart.js"></script>

<canvas id="myChart"></canvas>

const ctx = document.getElementById('myChart').getContext('2d');
const chart = new Chart(ctx, {
  type: 'line',
  data: {
    labels: ['Red', 'Blue', 'Yellow', 'Green', 'Purple', 'Orange'],
    datasets: [{
      label: 'My Dataset',
      data: [12, 19, 3, 5, 2, 3],
      backgroundColor: 'rgba(75, 192, 192, 0.2)',
      borderColor: 'rgba(75, 192, 192, 1)',
      borderWidth: 1
    }]
  },
  options: {
    plugins: {
      title: {
        display: true,
        text: 'My Chart Title'
      }
    }
  }
});

const chartTitle = chart.options.plugins.title.text;
console.log('Chart Title:', chartTitle);

Chart Title: My Chart Title