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webawesome/docs/components/progress-bar.md
Manuel Schmidt 8121faa1d4 Enrich components @summary with description from docs (#962)
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Markdown

# Progress Bar
[component-header:sl-progress-bar]
```html preview
<sl-progress-bar value="50"></sl-progress-bar>
```
```jsx react
import { SlProgressBar } from '@shoelace-style/shoelace/dist/react';
const App = () => <SlProgressBar value={50} />;
```
## Examples
### Labels
Use the `label` attribute to label the progress bar and tell assistive devices how to announce it.
```html preview
<sl-progress-bar value="50" label="Upload progress"></sl-progress-bar>
```
```jsx react
import { SlProgressBar } from '@shoelace-style/shoelace/dist/react';
const App = () => <SlProgressBar value="50" label="Upload progress" />;
```
### Custom Height
Use the `--height` custom property to set the progress bar's height.
```html preview
<sl-progress-bar value="50" style="--height: 6px;"></sl-progress-bar>
```
```jsx react
import { SlProgressBar } from '@shoelace-style/shoelace/dist/react';
const App = () => <SlProgressBar value={50} style={{ '--height': '6px' }} />;
```
### Showing Values
Use the default slot to show a value.
```html preview
<sl-progress-bar value="50" class="progress-bar-values">50%</sl-progress-bar>
<br />
<sl-button circle><sl-icon name="dash" label="Decrease"></sl-icon></sl-button>
<sl-button circle><sl-icon name="plus" label="Increase"></sl-icon></sl-button>
<script>
const progressBar = document.querySelector('.progress-bar-values');
const subtractButton = progressBar.nextElementSibling.nextElementSibling;
const addButton = subtractButton.nextElementSibling;
addButton.addEventListener('click', () => {
const value = Math.min(100, progressBar.value + 10);
progressBar.value = value;
progressBar.textContent = `${value}%`;
});
subtractButton.addEventListener('click', () => {
const value = Math.max(0, progressBar.value - 10);
progressBar.value = value;
progressBar.textContent = `${value}%`;
});
</script>
```
```jsx react
import { useState } from 'react';
import { SlButton, SlIcon, SlProgressBar } from '@shoelace-style/shoelace/dist/react';
const App = () => {
const [value, setValue] = useState(50);
function adjustValue(amount) {
let newValue = value + amount;
if (newValue < 0) newValue = 0;
if (newValue > 100) newValue = 100;
setValue(newValue);
}
return (
<>
<SlProgressBar value={value}>{value}%</SlProgressBar>
<br />
<SlButton circle onClick={() => adjustValue(-10)}>
<SlIcon name="dash" label="Decrease" />
</SlButton>
<SlButton circle onClick={() => adjustValue(10)}>
<SlIcon name="plus" label="Increase" />
</SlButton>
</>
);
};
```
### Indeterminate
The `indeterminate` attribute can be used to inform the user that the operation is pending, but its status cannot currently be determined. In this state, `value` is ignored and the label, if present, will not be shown.
```html preview
<sl-progress-bar indeterminate></sl-progress-bar>
```
```jsx react
import { SlProgressBar } from '@shoelace-style/shoelace/dist/react';
const App = () => <SlProgressBar indeterminate />;
```
[component-metadata:sl-progress-bar]