# # Chart Area Border

const config = { type: 'line', data: data, options: { plugins: { chartAreaBorder: { borderColor: 'red', borderWidth: 2, borderDash: [5, 5], borderDashOffset: 2, } } }, plugins: [chartAreaBorder] };

    const config = {
      type: 'line',
      data: data,
      options: {
        plugins: {
          chartAreaBorder: {
            borderColor: 'red',
            borderWidth: 2,
            borderDash: [5, 5],
            borderDashOffset: 2,
          }
        }
      },
      plugins: [chartAreaBorder]
    };

const chartAreaBorder = { id: 'chartAreaBorder', beforeDraw(chart, args, options) { const {ctx, chartArea: {left, top, width, height}} = chart; ctx.save(); ctx.strokeStyle = options.borderColor; ctx.lineWidth = options.borderWidth; ctx.setLineDash(options.borderDash || []); ctx.lineDashOffset = options.borderDashOffset; ctx.strokeRect(left, top, width, height); ctx.restore(); } };

    const chartAreaBorder = {
      id: 'chartAreaBorder',
      beforeDraw(chart, args, options) {
        const {ctx, chartArea: {left, top, width, height}} = chart;
        ctx.save();
        ctx.strokeStyle = options.borderColor;
        ctx.lineWidth = options.borderWidth;
        ctx.setLineDash(options.borderDash || []);
        ctx.lineDashOffset = options.borderDashOffset;
        ctx.strokeRect(left, top, width, height);
        ctx.restore();
      }
    };

const DATA_COUNT = 7; const NUMBER_CFG = {count: DATA_COUNT, min: -100, max: 100}; const labels = Utils.months({count: 7}); const data = { labels: labels, datasets: [ { label: 'Dataset 1', data: Utils.numbers(NUMBER_CFG), borderColor: Utils.CHART_COLORS.red, backgroundColor: Utils.transparentize(Utils.CHART_COLORS.red, 0.5), }, { label: 'Dataset 2', data: Utils.numbers(NUMBER_CFG), borderColor: Utils.CHART_COLORS.blue, backgroundColor: Utils.transparentize(Utils.CHART_COLORS.blue, 0.5), } ] };

    const DATA_COUNT = 7;
    const NUMBER_CFG = {count: DATA_COUNT, min: -100, max: 100};
    const labels = Utils.months({count: 7});
    const data = {
      labels: labels,
      datasets: [
        {
          label: 'Dataset 1',
          data: Utils.numbers(NUMBER_CFG),
          borderColor: Utils.CHART_COLORS.red,
          backgroundColor: Utils.transparentize(Utils.CHART_COLORS.red, 0.5),
        },
        {
          label: 'Dataset 2',
          data: Utils.numbers(NUMBER_CFG),
          borderColor: Utils.CHART_COLORS.blue,
          backgroundColor: Utils.transparentize(Utils.CHART_COLORS.blue, 0.5),
        }
      ]
    };

## # Docs

- Line
- Data structures (`labels`)
- Plugins