Line Segment Styling | Chart.js

# # Line Segment Styling

Using helper functions to style each segment. Gaps in the data ('skipped') are set to dashed lines and segments with values going 'down' are set to a different color.

const config = { type: 'line', data: { labels: Utils.months({count: 7}), datasets: [{ label: 'My First Dataset', data: [65, 59, NaN, 48, 56, 57, 40], borderColor: 'rgb(75, 192, 192)', segment: { borderColor: ctx => skipped(ctx, 'rgb(0,0,0,0.2)') || down(ctx, 'rgb(192,75,75)'), borderDash: ctx => skipped(ctx, [6, 6]), }, spanGaps: true }] }, options: genericOptions };

    const config = {
      type: 'line',
      data: {
        labels: Utils.months({count: 7}),
        datasets: [{
          label: 'My First Dataset',
          data: [65, 59, NaN, 48, 56, 57, 40],
          borderColor: 'rgb(75, 192, 192)',
          segment: {
            borderColor: ctx => skipped(ctx, 'rgb(0,0,0,0.2)') || down(ctx, 'rgb(192,75,75)'),
            borderDash: ctx => skipped(ctx, [6, 6]),
          },
          spanGaps: true
        }]
      },
      options: genericOptions
    };

const skipped = (ctx, value) => ctx.p0.skip || ctx.p1.skip ? value : undefined; const down = (ctx, value) => ctx.p0.parsed.y > ctx.p1.parsed.y ? value : undefined;

    const skipped = (ctx, value) => ctx.p0.skip || ctx.p1.skip ? value : undefined;
    const down = (ctx, value) => ctx.p0.parsed.y > ctx.p1.parsed.y ? value : undefined;

const genericOptions = { fill: false, interaction: { intersect: false }, radius: 0, };

    const genericOptions = {
      fill: false,
      interaction: {
        intersect: false
      },
      radius: 0,
    };

## # Docs

- Data structures (`labels`)
- Line
  - Line Styling
  - Segment
- Options
  - Scriptable Options