Sparkline

Preview

Rendered from the story the storybook (a11y) CI gate runs axe against — the preview can't show something that hasn't been verified.

Install

Two equivalent paths — the URL works in any shadcn-CLI setup; the alias works once you've registered @interlace in your components.json.

npx shadcn@latest add https://ds.interlace.tools/r/sparkline.json

npx shadcn@latest add @interlace/sparkline

Import

25 named exports — pull the parts you need.

import { ANNOTATION_KINDS, AnnotationKind, Direction, MIN_VIEWPORT, NumericPoint, Sparkline, areaPath, axisSlots, bandScales, compact, day, delta, describeDistribution, describeSeries, keepAtNarrow, linePath, nearestIndex, nearestSlot, numeric, peakBin, plotScales, seriesScales, slotAt, stepPath, ticks } from '@/components/ui/charts/sparkline';

API reference

Parsed from the type declarations in the source — the same file the install writes into your tree, so this table can't drift from the component you get.

Skeleton

Pass loading and the component renders a shape-matched <Skeleton /> in its own place — same box, so nothing reflows when the data lands. Below is the same story with loading={true}.

<ANNOTATION_KINDS loading={isPending} />

Accessibility

Every story for this component is rendered headlessly and checked with axe-core (wcag2aa, wcag22aa, best-practice, ACT) on every PR. That gate has no continue-on-error, so what ships has zero known violations.

What follows is what static analysis can see. Axe cannot press a key and never sees an overlay open, so the operable-without-a-mouse claim lives in Behavior instead, where the keyboard path is replayed step by step.

Focus + keyboard behaviour

Native element semantics — no interaction layer to get wrong.

Focus ring (WCAG 2.2 SC 2.4.13)

Not focusable — no focus indicator required.

Reduced motion

No animation to gate.

ARIA in the source

• role="img"

Examples

8 more states from the same story file.

R-rule compliance

Every primitive in @interlace/ui models to the portable 26-rule floor enforced by the componentApi ESLint preset. The cells below pin exactly where each rule applies in this file.

Dependencies

Base UI primitive

Native / no Base UI dependency

Lucide icons

none

NPM dependencies

none

Registry dependencies

• @interlace/theme
• @interlace/cn
• @interlace/data-state
• @interlace/delta
• @interlace/skeleton

Source

The full implementation — components/ui/charts/sparkline.tsx once installed.

import * as React from 'react';

// @interlace/sparkline v1.2.0 — Interlace design system.
// Docs, props and live preview: https://ds.interlace.tools/c/sparkline
// What changed since: https://ds.interlace.tools/c/sparkline#history
// Generated banner — keep it, the upgrade diff reads this version.

/**
 * @interlace/ui — Sparkline
 *
 * A trend in the width of a table cell. The densest thing in the package: it
 * exists so a `MetricTable` row can show *shape* without spending a chart's
 * worth of pixels, which is the whole roic.ai lesson — one row that reads a
 * decade beats one chart that reads a quarter.
 *
 * ## Colour is never the only signal
 *
 * Rising draws in `--viz-positive`, falling in `--viz-negative`. Roughly 8% of
 * men cannot tell those apart, so the direction is ALSO in the accessible name
 * ("up 12.4%") and in the end-cap position. If you find yourself removing the

…179 more lines…

Registry JSON

The raw registry record — what the shadcn CLI fetches.