Backend API
        
    import React from 'react';
import RowTemplate from './RowTemplate.tsx';
const years = ['2010', '2011', '2012'];
function App() {
  return (
    <React.Fragment>
      <div className="long-title"><h3>Monthly Prices of Copper, Nickel and Palladium</h3></div>
      <div id="chart-demo">
        <table className="demo-table" style={{ border: 1 }}>
          <tbody>
            <tr>
              <th />
              <th>Copper (USD/ton)</th>
              <th>Nickel (USD/ton)</th>
              <th>Palladium (USD/troy ounce)</th>
            </tr>
            {years.map((year, index) => (
              <RowTemplate key={index} year={year} />
            ))}
          </tbody>
        </table>
      </div>
    </React.Fragment>
  );
}
export default App;
    
    import React from 'react';
import RowTemplate from './RowTemplate.js';
const years = ['2010', '2011', '2012'];
function App() {
  return (
    <React.Fragment>
      <div className="long-title">
        <h3>Monthly Prices of Copper, Nickel and Palladium</h3>
      </div>
      <div id="chart-demo">
        <table
          className="demo-table"
          style={{ border: 1 }}
        >
          <tbody>
            <tr>
              <th />
              <th>Copper (USD/ton)</th>
              <th>Nickel (USD/ton)</th>
              <th>Palladium (USD/troy ounce)</th>
            </tr>
            {years.map((year, index) => (
              <RowTemplate
                key={index}
                year={year}
              />
            ))}
          </tbody>
        </table>
      </div>
    </React.Fragment>
  );
}
export default App;
    
    
import React from 'react';
import Sparkline, {
  Tooltip,
} from 'devextreme-react/sparkline';
import {
  copperCosts,
  nickelCosts,
  palladiumCosts,
} from './data.ts';
interface RowTemplateProps {
  key: number;
  year: string;
}
export default function RowTemplate(props: RowTemplateProps) {
  return (
    <tr>
      <th>{props.year}</th>
      <td>
        <Sparkline
          dataSource={copperCosts}
          showMinMax={true}
          className="sparkline"
          argumentField="month"
          valueField={props.year}
          type="area"
        >
          <Tooltip format="currency" />
        </Sparkline>
      </td>
      <td>
        <Sparkline
          dataSource={nickelCosts}
          pointSize={6}
          showMinMax={true}
          showFirstLast={false}
          className="sparkline"
          argumentField="month"
          valueField={props.year}
          type="splinearea"
          lineColor="#8076bb"
          minColor="#6babac"
          maxColor="#8076bb"
        >
          <Tooltip format="currency" />
        </Sparkline>
      </td>
      <td>
        <Sparkline
          dataSource={palladiumCosts}
          lineWidth={3}
          className="sparkline"
          argumentField="month"
          valueField={props.year}
          type="steparea"
          lineColor="#7e4452"
          firstLastColor="#e55253"
          pointColor="#e8c267"
          pointSymbol="polygon"
        >
          <Tooltip format="currency" />
        </Sparkline>
      </td>
    </tr>
  );
}
    
    import React from 'react';
import ReactDOM from 'react-dom';
import App from './App.tsx';
ReactDOM.render(
  <App />,
  document.getElementById('app'),
);
    
    export const copperCosts = [{
  month: 1,
  2010: 7341,
  2011: 9585,
  2012: 7501,
}, {
  month: 2,
  2010: 7016,
  2011: 10026,
  2012: 8470,
}, {
  month: 3,
  2010: 7202,
  2011: 9889,
  2012: 8591,
}, {
  month: 4,
  2010: 7851,
  2011: 9460,
  2012: 8459,
}, {
  month: 5,
  2010: 7481,
  2011: 9373,
  2012: 8320,
}, {
  month: 6,
  2010: 6532,
  2011: 9108,
  2012: 7465,
}, {
  month: 7,
  2010: 6498,
  2011: 9295,
  2012: 7475,
}, {
  month: 8,
  2010: 7191,
  2011: 9834,
  2012: 7430,
}, {
  month: 9,
  2010: 7596,
  2011: 9121,
  2012: 7614,
}, {
  month: 10,
  2010: 8057,
  2011: 7125,
  2012: 8245,
}, {
  month: 11,
  2010: 8373,
  2011: 7871,
  2012: 7727,
}, {
  month: 12,
  2010: 8636,
  2011: 7725,
  2012: 7880,
}];
export const nickelCosts = [{
  month: 1,
  2010: 18974,
  2011: 24298,
  2012: 18322,
}, {
  month: 2,
  2010: 18162,
  2011: 27929,
  2012: 21093,
}, {
  month: 3,
  2010: 20535,
  2011: 28802,
  2012: 19701,
}, {
  month: 4,
  2010: 24562,
  2011: 26142,
  2012: 17695,
}, {
  month: 5,
  2010: 26131,
  2011: 26753,
  2012: 17549,
}, {
  month: 6,
  2010: 19278,
  2011: 23055,
  2012: 16436,
}, {
  month: 7,
  2010: 19475,
  2011: 22870,
  2012: 16382,
}, {
  month: 8,
  2010: 20701,
  2011: 24388,
  2012: 15687,
}, {
  month: 9,
  2010: 21266,
  2011: 21845,
  2012: 16085,
}, {
  month: 10,
  2010: 23358,
  2011: 18346,
  2012: 18250,
}, {
  month: 11,
  2010: 23150,
  2011: 18822,
  2012: 16083,
}, {
  month: 12,
  2010: 23282,
  2011: 17320,
  2012: 17104,
}];
export const palladiumCosts = [{
  month: 1,
  2010: 398,
  2011: 788,
  2012: 649,
}, {
  month: 2,
  2010: 422,
  2011: 817,
  2012: 698,
}, {
  month: 3,
  2010: 431,
  2011: 812,
  2012: 713,
}, {
  month: 4,
  2010: 481,
  2011: 760,
  2012: 654,
}, {
  month: 5,
  2010: 551,
  2011: 774,
  2012: 665,
}, {
  month: 6,
  2010: 449,
  2011: 775,
  2012: 609,
}, {
  month: 7,
  2010: 442,
  2011: 750,
  2012: 584,
}, {
  month: 8,
  2010: 482,
  2011: 827,
  2012: 580,
}, {
  month: 9,
  2010: 517,
  2011: 776,
  2012: 632,
}, {
  month: 10,
  2010: 566,
  2011: 624,
  2012: 657,
}, {
  month: 11,
  2010: 630,
  2011: 651,
  2012: 601,
}, {
  month: 12,
  2010: 737,
  2011: 615,
  2012: 675,
}];
    
    window.exports = window.exports || {};
window.config = {
  transpiler: 'ts',
  typescriptOptions: {
    module: 'system',
    emitDecoratorMetadata: true,
    experimentalDecorators: true,
    jsx: 'react',
  },
  meta: {
    'react': {
      'esModule': true,
    },
    'typescript': {
      'exports': 'ts',
    },
    'devextreme/time_zone_utils.js': {
      'esModule': true,
    },
    'devextreme/localization.js': {
      'esModule': true,
    },
    'devextreme/viz/palette.js': {
      'esModule': true,
    },
    'openai': {
      'esModule': true,
    },
  },
  paths: {
    'npm:': 'https://cdn.jsdelivr.net/npm/',
    'bundles:': '../../../../bundles/',
    'externals:': '../../../../bundles/externals/',
  },
  defaultExtension: 'js',
  map: {
    'ts': 'npm:plugin-typescript@8.0.0/lib/plugin.js',
    'typescript': 'npm:typescript@4.2.4/lib/typescript.js',
    'jszip': 'npm:jszip@3.10.1/dist/jszip.min.js',
    'react': 'npm:react@17.0.2/umd/react.development.js',
    'react-dom': 'npm:react-dom@17.0.2/umd/react-dom.development.js',
    'prop-types': 'npm:prop-types/prop-types.js',
    'rrule': 'npm:rrule@2.6.4/dist/es5/rrule.js',
    'luxon': 'npm:luxon@3.4.4/build/global/luxon.min.js',
    'es6-object-assign': 'npm:es6-object-assign',
    'devextreme': 'npm:devextreme@link:../../packages/devextreme/artifacts/npm/devextreme/cjs',
    'devextreme-react': 'npm:devextreme-react@link:../../packages/devextreme-react/npm/cjs',
    'devextreme-quill': 'npm:devextreme-quill@1.7.6/dist/dx-quill.min.js',
    'devexpress-diagram': 'npm:devexpress-diagram@2.2.24/dist/dx-diagram.js',
    'devexpress-gantt': 'npm:devexpress-gantt@4.1.64/dist/dx-gantt.js',
    'inferno': 'npm:inferno@8.2.3/dist/inferno.min.js',
    'inferno-compat': 'npm:inferno-compat/dist/inferno-compat.min.js',
    'inferno-create-element': 'npm:inferno-create-element@8.2.3/dist/inferno-create-element.min.js',
    'inferno-dom': 'npm:inferno-dom/dist/inferno-dom.min.js',
    'inferno-hydrate': 'npm:inferno-hydrate/dist/inferno-hydrate.min.js',
    'inferno-clone-vnode': 'npm:inferno-clone-vnode/dist/inferno-clone-vnode.min.js',
    'inferno-create-class': 'npm:inferno-create-class/dist/inferno-create-class.min.js',
    'inferno-extras': 'npm:inferno-extras/dist/inferno-extras.min.js',
    '@preact/signals-core': 'npm:@preact/signals-core@1.8.0/dist/signals-core.min.js',
    'devextreme-cldr-data': 'npm:devextreme-cldr-data@1.0.3',
    // SystemJS plugins
    'plugin-babel': 'npm:systemjs-plugin-babel@0.0.25/plugin-babel.js',
    'systemjs-babel-build': 'npm:systemjs-plugin-babel@0.0.25/systemjs-babel-browser.js',
    // Prettier
    'prettier/standalone': 'npm:prettier@2.8.8/standalone.js',
    'prettier/parser-html': 'npm:prettier@2.8.8/parser-html.js',
  },
  packages: {
    'devextreme': {
      defaultExtension: 'js',
    },
    'devextreme-react': {
      main: 'index.js',
    },
    'devextreme-react/common': {
      main: 'index.js',
    },
    'devextreme/events/utils': {
      main: 'index',
    },
    'devextreme/common/core/events/utils': {
      main: 'index',
    },
    'devextreme/localization/messages': {
      format: 'json',
      defaultExtension: 'json',
    },
    'devextreme/events': {
      main: 'index',
    },
    'es6-object-assign': {
      main: './index.js',
      defaultExtension: 'js',
    },
  },
  packageConfigPaths: [
    'npm:@devextreme/*/package.json',
  ],
  babelOptions: {
    sourceMaps: false,
    stage0: true,
    react: true,
  },
};
System.config(window.config);
// eslint-disable-next-line
const useTgzInCSB = ['openai'];
    
    import React from 'react';
import Sparkline, { Tooltip } from 'devextreme-react/sparkline';
import { copperCosts, nickelCosts, palladiumCosts } from './data.js';
export default function RowTemplate(props) {
  return (
    <tr>
      <th>{props.year}</th>
      <td>
        <Sparkline
          dataSource={copperCosts}
          showMinMax={true}
          className="sparkline"
          argumentField="month"
          valueField={props.year}
          type="area"
        >
          <Tooltip format="currency" />
        </Sparkline>
      </td>
      <td>
        <Sparkline
          dataSource={nickelCosts}
          pointSize={6}
          showMinMax={true}
          showFirstLast={false}
          className="sparkline"
          argumentField="month"
          valueField={props.year}
          type="splinearea"
          lineColor="#8076bb"
          minColor="#6babac"
          maxColor="#8076bb"
        >
          <Tooltip format="currency" />
        </Sparkline>
      </td>
      <td>
        <Sparkline
          dataSource={palladiumCosts}
          lineWidth={3}
          className="sparkline"
          argumentField="month"
          valueField={props.year}
          type="steparea"
          lineColor="#7e4452"
          firstLastColor="#e55253"
          pointColor="#e8c267"
          pointSymbol="polygon"
        >
          <Tooltip format="currency" />
        </Sparkline>
      </td>
    </tr>
  );
}
    
    import React from 'react';
import ReactDOM from 'react-dom';
import App from './App.js';
ReactDOM.render(<App />, document.getElementById('app'));
    
    export const copperCosts = [
  {
    month: 1,
    2010: 7341,
    2011: 9585,
    2012: 7501,
  },
  {
    month: 2,
    2010: 7016,
    2011: 10026,
    2012: 8470,
  },
  {
    month: 3,
    2010: 7202,
    2011: 9889,
    2012: 8591,
  },
  {
    month: 4,
    2010: 7851,
    2011: 9460,
    2012: 8459,
  },
  {
    month: 5,
    2010: 7481,
    2011: 9373,
    2012: 8320,
  },
  {
    month: 6,
    2010: 6532,
    2011: 9108,
    2012: 7465,
  },
  {
    month: 7,
    2010: 6498,
    2011: 9295,
    2012: 7475,
  },
  {
    month: 8,
    2010: 7191,
    2011: 9834,
    2012: 7430,
  },
  {
    month: 9,
    2010: 7596,
    2011: 9121,
    2012: 7614,
  },
  {
    month: 10,
    2010: 8057,
    2011: 7125,
    2012: 8245,
  },
  {
    month: 11,
    2010: 8373,
    2011: 7871,
    2012: 7727,
  },
  {
    month: 12,
    2010: 8636,
    2011: 7725,
    2012: 7880,
  },
];
export const nickelCosts = [
  {
    month: 1,
    2010: 18974,
    2011: 24298,
    2012: 18322,
  },
  {
    month: 2,
    2010: 18162,
    2011: 27929,
    2012: 21093,
  },
  {
    month: 3,
    2010: 20535,
    2011: 28802,
    2012: 19701,
  },
  {
    month: 4,
    2010: 24562,
    2011: 26142,
    2012: 17695,
  },
  {
    month: 5,
    2010: 26131,
    2011: 26753,
    2012: 17549,
  },
  {
    month: 6,
    2010: 19278,
    2011: 23055,
    2012: 16436,
  },
  {
    month: 7,
    2010: 19475,
    2011: 22870,
    2012: 16382,
  },
  {
    month: 8,
    2010: 20701,
    2011: 24388,
    2012: 15687,
  },
  {
    month: 9,
    2010: 21266,
    2011: 21845,
    2012: 16085,
  },
  {
    month: 10,
    2010: 23358,
    2011: 18346,
    2012: 18250,
  },
  {
    month: 11,
    2010: 23150,
    2011: 18822,
    2012: 16083,
  },
  {
    month: 12,
    2010: 23282,
    2011: 17320,
    2012: 17104,
  },
];
export const palladiumCosts = [
  {
    month: 1,
    2010: 398,
    2011: 788,
    2012: 649,
  },
  {
    month: 2,
    2010: 422,
    2011: 817,
    2012: 698,
  },
  {
    month: 3,
    2010: 431,
    2011: 812,
    2012: 713,
  },
  {
    month: 4,
    2010: 481,
    2011: 760,
    2012: 654,
  },
  {
    month: 5,
    2010: 551,
    2011: 774,
    2012: 665,
  },
  {
    month: 6,
    2010: 449,
    2011: 775,
    2012: 609,
  },
  {
    month: 7,
    2010: 442,
    2011: 750,
    2012: 584,
  },
  {
    month: 8,
    2010: 482,
    2011: 827,
    2012: 580,
  },
  {
    month: 9,
    2010: 517,
    2011: 776,
    2012: 632,
  },
  {
    month: 10,
    2010: 566,
    2011: 624,
    2012: 657,
  },
  {
    month: 11,
    2010: 630,
    2011: 651,
    2012: 601,
  },
  {
    month: 12,
    2010: 737,
    2011: 615,
    2012: 675,
  },
];
    
    <!DOCTYPE html>
<html lang="en">
  <head>
    <title>DevExtreme Demo</title>
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=5.0" />
    <link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/25.1.6/css/dx.light.css" />
    <link rel="stylesheet" type="text/css" href="styles.css" />
    <script src="https://cdn.jsdelivr.net/npm/core-js@2.6.12/client/shim.min.js"></script>
    <script src="https://cdn.jsdelivr.net/npm/systemjs@0.21.3/dist/system.js"></script>
    <script type="text/javascript" src="config.js"></script>
    <script type="text/javascript">
      System.import("./index.tsx");
    </script>
  </head>
  <body class="dx-viewport">
    <div class="demo-container">
      <div id="app"></div>
    </div>
  </body>
</html>
    
    #chart-demo {
  height: 440px;
}
.demo-table {
  width: 100%;
  border: 1px solid #c2c2c2;
  border-collapse: collapse;
}
.demo-table th,
.demo-table td {
  font-weight: 400;
  width: 200px;
  padding: 25px 10px 5px;
  border: 1px solid #c2c2c2;
}
.demo-table th {
  padding: 25px 15px 20px;
  border: 1px solid #c2c2c2;
}
.demo-table tr:nth-child(2) td {
  border-top: 1px solid #c2c2c2;
}
.demo-table td:first-of-type {
  border-left: 1px solid #c2c2c2;
}
.demo-table .sparkline {
  width: 200px;
  height: 30px;
}
.long-title h3 {
  font-weight: 200;
  font-size: 28px;
  text-align: center;
  margin-bottom: 20px;
  margin-top: 0;
}