> For the complete documentation index, see [llms.txt](https://atomico.gitbook.io/doc/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://atomico.gitbook.io/doc/packages/atomico-hooks/use-responsive-state.md).

# use-responsive-state

Declare a state based on a responsive expression similar to using the tag img\[srcset].

### Module

```javascript
import { useResponsiveState } from "@atomico/hooks/use-responsive-state";
```

### Syntax

{% tabs %}
{% tab title="Normal" %}

```javascript
const expression = "phone, tablet 720px, destop 1080px";
const state = useResponsiveState(expression);
```

{% endtab %}

{% tab title="Template string" %}

```javascript
const state = useResponsiveState`
    phone, tablet 720px, destop 1080px
`;
```

{% endtab %}
{% endtabs %}

Where:

* `state`: `String`, Current state according to the comparison between experiment and matchMedia.
* `expression`: `String`, An expression that declares the serialized states.

### Expressions

```
"<defaultState>, <caseState> <size>"
```

Where:

* `defaultState`: Default state this cannot contain the use of commas `", "`.
* `caseState`: Status to show if matchMedia match.
  * size: size expression to observe, example:
    * "1080px": `(min-width: 1080px)`
    * "1080x720px": `(min-width: 1080px) and (min-height: 720px)`
    * "50rem": `(min-width: 50rem)`
    * "50em": `(min-width: 50em)`

### Example

The following example shows the use of useResponsiveState, to display a message based on the mediaquery.

{% embed url="<https://studio.webcomponents.dev/edit/collection/n2tZyzx4LMKqk1jNE0e9/gGV9X6OW5gINqRBFp8mK/src/index.jsx>" %}


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