如何在离子角度中始终显示折线图工具提示？

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

<canvas id="lineChart"></canvas>

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

var data = {
  labels: ['标签1', '标签2', '标签3', '标签4', '标签5'],
  datasets: [{
    label: '数据集1',
    data: [10, 20, 30, 40, 50],
    backgroundColor: 'rgba(0, 123, 255, 0.5)',
    borderColor: 'rgba(0, 123, 255, 1)',
    borderWidth: 1
  }]
};

var options = {
  tooltips: {
    enabled: true
  }
};

var chart = new Chart(lineChart, {
  type: 'line',
  data: data,
  options: options
});