# Intro

const config = {
  type: 'line',
  data,
  options: {
    plugins: {
      annotation: {
        annotations: {
          annotation1,
          annotation2
        }
      }
    }
  }
};const config = {
  type: 'line',
  data,
  options: {
    plugins: {
      annotation: {
        annotations: {
          annotation1,
          annotation2
        }
      }
    }
  }
};

const annotation1 = {
  type: 'line',
  borderColor: 'black',
  borderWidth: 5,
  click: function({chart, element}) {
    console.log('Line annotation clicked');
  },
  label: {
    backgroundColor: 'red',
    content: 'Test Label',
    display: true
  },
  scaleID: 'y',
  value: Utils.rand(-100, 100)
};const annotation1 = {
  type: 'line',
  borderColor: 'black',
  borderWidth: 5,
  click: function({chart, element}) {
    console.log('Line annotation clicked');
  },
  label: {
    backgroundColor: 'red',
    content: 'Test Label',
    display: true
  },
  scaleID: 'y',
  value: Utils.rand(-100, 100)
};

const annotation2 = {
  type: 'box',
  backgroundColor: 'rgba(101, 33, 171, 0.5)',
  borderColor: 'rgb(101, 33, 171)',
  borderWidth: 1,
  click: function({chart, element}) {
    console.log('Box annotation clicked');
  },
  drawTime: 'beforeDatasetsDraw',
  xMax: 'April',
  xMin: 'February',
  xScaleID: 'x',
  yMax: Utils.rand(-100, 100),
  yMin: Utils.rand(-100, 100),
  yScaleID: 'y'
};const annotation2 = {
  type: 'box',
  backgroundColor: 'rgba(101, 33, 171, 0.5)',
  borderColor: 'rgb(101, 33, 171)',
  borderWidth: 1,
  click: function({chart, element}) {
    console.log('Box annotation clicked');
  },
  drawTime: 'beforeDatasetsDraw',
  xMax: 'April',
  xMin: 'February',
  xScaleID: 'x',
  yMax: Utils.rand(-100, 100),
  yMin: Utils.rand(-100, 100),
  yScaleID: 'y'
};

Utils.srand(8);
const data = {
  labels: ['January', 'February', 'March', 'April', 'May', 'June', 'July'],
  datasets: [{
    type: 'line',
    label: 'Dataset 1',
    borderColor: 'rgb(54, 162, 235)',
    borderWidth: 2,
    fill: false,
    data: Utils.numbers({count: 7, min: -100, max: 100}),
  }, {
    type: 'bar',
    label: 'Dataset 2',
    backgroundColor: 'rgb(255, 99, 132)',
    data: Utils.numbers({count: 7, min: -100, max: 100}),
    borderColor: 'white',
    borderWidth: 2
  }, {
    type: 'bar',
    label: 'Dataset 3',
    backgroundColor: 'rgb(75, 192, 192)',
    data: Utils.numbers({count: 7, min: -100, max: 100}),
  }]
};Utils.srand(8);
const data = {
  labels: ['January', 'February', 'March', 'April', 'May', 'June', 'July'],
  datasets: [{
    type: 'line',
    label: 'Dataset 1',
    borderColor: 'rgb(54, 162, 235)',
    borderWidth: 2,
    fill: false,
    data: Utils.numbers({count: 7, min: -100, max: 100}),
  }, {
    type: 'bar',
    label: 'Dataset 2',
    backgroundColor: 'rgb(255, 99, 132)',
    data: Utils.numbers({count: 7, min: -100, max: 100}),
    borderColor: 'white',
    borderWidth: 2
  }, {
    type: 'bar',
    label: 'Dataset 3',
    backgroundColor: 'rgb(75, 192, 192)',
    data: Utils.numbers({count: 7, min: -100, max: 100}),
  }]
};

Basic →