Canvas: Sparkline

Sparkline draws a mini line chart from a data array (y-values). Supports variant (line | area), color, strokeWidth, and style.

Variant:
Color:

Table (TanStack API)

Code

import { Grid, createColumnHelper, Sparkline } from "@ohah/react-wasm-table";

const helper = createColumnHelper<{ trend: number[] }>();

const columns = [
  helper.accessor("trend", {
    header: "Trend",
    size: 200,
    cell: (info) => (
      <Sparkline data={info.getValue()} variant="line" color="#1565c0" strokeWidth={1.5} />
    ),
  }),
];

<Grid data={data} columns={columns} width={360} height={460} rowHeight={40} />;

Table API Code

import {
  Table,
  useReactTable,
  flexRender,
  getCoreRowModel,
  Thead,
  Tbody,
  Tr,
  Th,
  Td,
  createColumnHelper,
  Sparkline,
} from "@ohah/react-wasm-table";

const helper = createColumnHelper<{ trend: number[] }>();

const columns = [
  helper.accessor("trend", {
    header: "Trend",
    size: 200,
    cell: (info) => (
      <Sparkline data={info.getValue()} variant="line" color="#1565c0" strokeWidth={1.5} />
    ),
  }),
];

const table = useReactTable({ data, columns, getCoreRowModel: getCoreRowModel() });

<Table table={table} width={360} height={460} rowHeight={40}>
  <Thead>
    {table.getHeaderGroups().map((hg) => (
      <Tr key={hg.id}>
        {hg.headers.map((h) => (
          <Th key={h.id} colSpan={h.colSpan}>
            {h.isPlaceholder ? null : flexRender(h.column.columnDef.header, h.getContext())}
          </Th>
        ))}
      </Tr>
    ))}
  </Thead>
  <Tbody>
    {table.getRowModel().rows.map((row) => (
      <Tr key={row.id}>
        {row.getVisibleCells().map((cell) => (
          <Td key={cell.id}>{flexRender(cell.column.columnDef.cell, cell.getContext())}</Td>
        ))}
      </Tr>
    ))}
  </Tbody>
</Table>;