# Loading, errors and no data

> setLoading, setError with retry, and the noData message.

Source: https://82chart.com/en/docs/loading-errors/

Show a bar-shaped placeholder while data loads (`loading: true` or `chart.setLoading(true)`) and report failures with `setError(message, retry)`.

```js
const chart = createChart('#chart', {
  type: 'bar',
  title: 'Weekly sign-ups',
  loading: true,
  data: { labels: [], series: [] },
});
let tries = 0;
const load = () => {
  chart.setError(null);
  chart.setLoading(true);
  setTimeout(() => {
    chart.setLoading(false);
    if (++tries === 1) return chart.setError('Could not load the stats.', load);
    chart.update({ labels: ['Mon', 'Tue', 'Wed', 'Thu', 'Fri'], series: [{ name: 'Sign-ups', data: [42, 51, 38, 64, 57] }] });
  }, 1200);
};
load();
```

| API | What it does |
| --- | --- |
| `loading: true` / `chart.setLoading(bool)` | Shows the placeholder and sets `aria-busy` |
| `chart.setError(message, retry?)` | An error message with a Try again button; `setError(null)` clears it |
| `noData` | Message when there is nothing to draw (default 'No data to display') |