Candlestick

<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/@toclocoinc/lattice-grid@1.27.0/lattice-grid.min.css">

<div id="app"></div>

<script type="module">
  import React from 'https://esm.sh/react@18';
  import { createRoot } from 'https://esm.sh/react-dom@18/client';
  import { createGrid } from 'https://cdn.jsdelivr.net/npm/@toclocoinc/lattice-grid@1.27.0/lattice-grid.esm.min.js';
  import createLatticeGrid from 'https://cdn.jsdelivr.net/npm/@toclocoinc/lattice-grid@1.27.0/modules/react.esm.min.js';
  import { createChart } from 'https://cdn.jsdelivr.net/npm/@toclocoinc/lattice-grid@1.27.0/modules/charts.esm.min.js';

  const LatticeGrid = createLatticeGrid({ React, createGrid });

  const columns = [
    { field: 'day', title: 'Day', type: 'date', layout: { width: 120 } },
    { field: 'open',  title: 'Open',  type: 'number', format: { decimals: 2 } },
    { field: 'high',  title: 'High',  type: 'number', format: { decimals: 2 } },
    { field: 'low',   title: 'Low',   type: 'number', format: { decimals: 2 } },
    { field: 'close', title: 'Close', type: 'number', format: { decimals: 2 } },
  ];

  // e.g. [{ id: 1, day: '2026-01-02', open: 100, high: 101.2, low: 99.3, close: 100.8 }, ...]
  const rows = [/* one row a day */];

  function App() {
    const gridRef = React.useRef(null);

    React.useEffect(() => {
      const grid = gridRef.current.grid;
      // Candlestick takes four measures, in open, high, low, close order.
      createChart({ grid, container: '#chart', type: 'candlestick', x: 'day',
        measures: [{ col: 'open' }, { col: 'high' }, { col: 'low' }, { col: 'close' }],
        title: 'Daily range' });
    }, []);

    return (
      <>
        <div id="chart" style={{ height: '320px' }} />
        <LatticeGrid
          ref={gridRef}
          rowKey="id"
          columns={columns}
          rows={rows}
          style={{ height: '320px', marginTop: '14px' }}
        />
      </>
    );
  }

  createRoot(document.getElementById('app')).render(<App />);
</script>