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30-seconds-of-code/snippets/mapped-table.md
2018-10-13 16:48:53 +02:00

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### MappedTable
Renders a table with rows dynamically created from an array of data.
Use the value of the `headers` prop to conditionally render a table with a header. Use `Array.prototype.map` to render every item in `data` as a `<tr>` element and give it a `key`. `data` can either be an array of objects with the `id` and `value` properties or an array of primitives. Omit the `headers` prop to render a `table` without headers.
```jsx
function MappedTable(props) {
return (
<table>
<thead>
{props.headers ? (
<tr>
{props.headers.map((h, i) => (
<th key={i}>h</th>
))}
</tr>
) : null}
</thead>
<tbody>
{props.data.map((v, i) =>
(
<tr obj={v} key={v.id ? v.id : i}>
<td>v.name</td>
</tr>
);
)}
</tbody>
</table>
);
}
```
```jsx
const people = [{ id: 841, name: 'John' }, { id: 241, name: 'Jesse' }];
const headers = ['id', 'name'];
ReactDOM.render(
<MappedTable data={people} headers={headers} />,
document.getElementById('root')
);
```
<!-- tags: (array,functional) -->
<!-- expertise: (1) -->