30-seconds-of-code/snippets/DataTable.md

DataTable

Renders a table with rows dynamically created from an array of primitives.

Render a <table> element with two columns (ID and Value). Use Array.prototype.map to render every item in data as a <tr> element, consisting of its index and value, give it a key produced from the concatenation of the two.

function DataTable({ data }) {
  return (
    <table>
      <thead>
        <tr>
          <th>ID</th>
          <th>Value</th>
        </tr>
      </thead>
      <tbody>
        {data.map((val, i) =>
          <tr key={`${i}_${val}`}>
            <td>{i}</td>
            <td>{val}</td>
          </tr>
        )}
      </tbody>
    </table>
  );
}

const people = ['John', 'Jesse'];
ReactDOM.render(
  <DataTable data={people} />,
  document.getElementById('root')
);